1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
22 This paragraph is here to try to keep Sun CC from dying.
23 The number of chars here seems crucial!!!! */
25 /* This program is the user interface to the C compiler and possibly to
26 other compilers. It is used because compilation is a complicated procedure
27 which involves running several programs and passing temporary files between
28 them, forwarding the users switches to those programs selectively,
29 and deleting the temporary files at the end.
31 CC recognizes how to compile each input file by suffixes in the file names.
32 Once it knows which kind of compilation to perform, the procedure for
33 compilation is specified by a string called a "spec". */
35 /* A Short Introduction to Adding a Command-Line Option.
37 Before adding a command-line option, consider if it is really
38 necessary. Each additional command-line option adds complexity and
39 is difficult to remove in subsequent versions.
41 In the following, consider adding the command-line argument
44 1. Each command-line option is specified in the specs file. The
45 notation is described below in the comment entitled "The Specs
48 2. In this file, add an entry to "option_map" equating the long
49 `--' argument version and any shorter, single letter version. Read
50 the comments in the declaration of "struct option_map" for an
51 explanation. Do not omit the first `-'.
53 3. Look in the "specs" file to determine which program or option
54 list should be given the argument, e.g., "cc1_options". Add the
55 appropriate syntax for the shorter option version to the
56 corresponding "const char *" entry in this file. Omit the first
57 `-' from the option. For example, use `-bar', rather than `--bar'.
59 4. If the argument takes an argument, e.g., `--baz argument1',
60 modify either DEFAULT_SWITCH_TAKES_ARG or
61 DEFAULT_WORD_SWITCH_TAKES_ARG in this file. Omit the first `-'
64 5. Document the option in this file's display_help(). If the
65 option is passed to a subprogram, modify its corresponding
66 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
69 6. Compile and test. Make sure that your new specs file is being
70 read. For example, use a debugger to investigate the value of
71 "specs_file" in main(). */
76 #if ! defined( SIGCHLD ) && defined( SIGCLD )
77 # define SIGCHLD SIGCLD
85 #ifdef HAVE_SYS_RESOURCE_H
86 #include <sys/resource.h>
88 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
89 extern int getrusage
PARAMS ((int, struct rusage
*));
92 /* By default there is no special suffix for target executables. */
93 /* FIXME: when autoconf is fixed, remove the host check - dj */
94 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
95 #define HAVE_TARGET_EXECUTABLE_SUFFIX
98 /* By default there is no special suffix for host executables. */
99 #ifdef HOST_EXECUTABLE_SUFFIX
100 #define HAVE_HOST_EXECUTABLE_SUFFIX
102 #define HOST_EXECUTABLE_SUFFIX ""
105 /* By default, the suffix for target object files is ".o". */
106 #ifdef TARGET_OBJECT_SUFFIX
107 #define HAVE_TARGET_OBJECT_SUFFIX
109 #define TARGET_OBJECT_SUFFIX ".o"
113 /* FIXME: the location independence code for VMS is hairier than this,
114 and hasn't been written. */
120 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
122 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
123 #ifndef LIBRARY_PATH_ENV
124 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
128 #define kill(p,s) raise(s)
131 /* If a stage of compilation returns an exit status >= 1,
132 compilation of that file ceases. */
134 #define MIN_FATAL_STATUS 1
136 /* Flag set by cppspec.c to 1. */
139 /* Flag saying to pass the greatest exit code returned by a sub-process
140 to the calling program. */
141 static int pass_exit_codes
;
143 /* Definition of string containing the arguments given to configure. */
144 #include "configargs.h"
146 /* Flag saying to print the directories gcc will search through looking for
147 programs, libraries, etc. */
149 static int print_search_dirs
;
151 /* Flag saying to print the full filename of this file
152 as found through our usual search mechanism. */
154 static const char *print_file_name
= NULL
;
156 /* As print_file_name, but search for executable file. */
158 static const char *print_prog_name
= NULL
;
160 /* Flag saying to print the relative path we'd use to
161 find libgcc.a given the current compiler flags. */
163 static int print_multi_directory
;
165 /* Flag saying to print the list of subdirectories and
166 compiler flags used to select them in a standard form. */
168 static int print_multi_lib
;
170 /* Flag saying to print the command line options understood by gcc and its
173 static int print_help_list
;
175 /* Flag indicating whether we should print the command and arguments */
177 static int verbose_flag
;
179 /* Flag indicating whether we should ONLY print the command and
180 arguments (like verbose_flag) without executing the command.
181 Displayed arguments are quoted so that the generated command
182 line is suitable for execution. This is intended for use in
183 shell scripts to capture the driver-generated command line. */
184 static int verbose_only_flag
;
186 /* Flag indicating to print target specific command line options. */
188 static int target_help_flag
;
190 /* Flag indicating whether we should report subprocess execution times
191 (if this is supported by the system - see pexecute.c). */
193 static int report_times
;
195 /* Nonzero means write "temp" files in source directory
196 and use the source file's name in them, and don't delete them. */
198 static int save_temps_flag
;
200 /* The compiler version. */
202 static const char *compiler_version
;
204 /* The target version specified with -V */
206 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
208 /* The target machine specified with -b. */
210 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
212 /* Nonzero if cross-compiling.
213 When -b is used, the value comes from the `specs' file. */
216 static const char *cross_compile
= "1";
218 static const char *cross_compile
= "0";
221 #ifdef MODIFY_TARGET_NAME
223 /* Information on how to alter the target name based on a command-line
224 switch. The only case we support now is simply appending or deleting a
225 string to or from the end of the first part of the configuration name. */
227 static const struct modify_target
229 const char *const sw
;
230 const enum add_del
{ADD
, DELETE
} add_del
;
231 const char *const str
;
233 modify_target
[] = MODIFY_TARGET_NAME
;
236 /* The number of errors that have occurred; the link phase will not be
237 run if this is non-zero. */
238 static int error_count
= 0;
240 /* Greatest exit code of sub-processes that has been encountered up to
242 static int greatest_status
= 1;
244 /* This is the obstack which we use to allocate many strings. */
246 static struct obstack obstack
;
248 /* This is the obstack to build an environment variable to pass to
249 collect2 that describes all of the relevant switches of what to
250 pass the compiler in building the list of pointers to constructors
253 static struct obstack collect_obstack
;
255 /* These structs are used to collect resource usage information for
257 #ifdef HAVE_GETRUSAGE
258 static struct rusage rus
, prus
;
261 /* Forward declaration for prototypes. */
264 static void init_spec
PARAMS ((void));
266 static char **split_directories
PARAMS ((const char *, int *));
267 static void free_split_directories
PARAMS ((char **));
268 static char *make_relative_prefix
PARAMS ((const char *, const char *, const char *));
270 static void store_arg
PARAMS ((const char *, int, int));
271 static char *load_specs
PARAMS ((const char *));
272 static void read_specs
PARAMS ((const char *, int));
273 static void set_spec
PARAMS ((const char *, const char *));
274 static struct compiler
*lookup_compiler
PARAMS ((const char *, size_t, const char *));
275 static char *build_search_list
PARAMS ((struct path_prefix
*, const char *, int));
276 static void putenv_from_prefixes
PARAMS ((struct path_prefix
*, const char *));
277 static int access_check
PARAMS ((const char *, int));
278 static char *find_a_file
PARAMS ((struct path_prefix
*, const char *, int));
279 static void add_prefix
PARAMS ((struct path_prefix
*, const char *,
280 const char *, int, int, int *));
281 static void translate_options
PARAMS ((int *, const char *const **));
282 static char *skip_whitespace
PARAMS ((char *));
283 static void delete_if_ordinary
PARAMS ((const char *));
284 static void delete_temp_files
PARAMS ((void));
285 static void delete_failure_queue
PARAMS ((void));
286 static void clear_failure_queue
PARAMS ((void));
287 static int check_live_switch
PARAMS ((int, int));
288 static const char *handle_braces
PARAMS ((const char *));
289 static char *save_string
PARAMS ((const char *, int));
290 static void set_collect_gcc_options
PARAMS ((void));
291 static int do_spec_1
PARAMS ((const char *, int, const char *));
292 static int do_spec_2
PARAMS ((const char *));
293 static const char *find_file
PARAMS ((const char *));
294 static int is_directory
PARAMS ((const char *, const char *, int));
295 static void validate_switches
PARAMS ((const char *));
296 static void validate_all_switches
PARAMS ((void));
297 static void give_switch
PARAMS ((int, int, int));
298 static int used_arg
PARAMS ((const char *, int));
299 static int default_arg
PARAMS ((const char *, int));
300 static void set_multilib_dir
PARAMS ((void));
301 static void print_multilib_info
PARAMS ((void));
302 static void perror_with_name
PARAMS ((const char *));
303 static void pfatal_pexecute
PARAMS ((const char *, const char *))
305 static void notice
PARAMS ((const char *, ...))
307 static void display_help
PARAMS ((void));
308 static void add_preprocessor_option
PARAMS ((const char *, int));
309 static void add_assembler_option
PARAMS ((const char *, int));
310 static void add_linker_option
PARAMS ((const char *, int));
311 static void process_command
PARAMS ((int, const char *const *));
312 static int execute
PARAMS ((void));
313 static void clear_args
PARAMS ((void));
314 static void fatal_error
PARAMS ((int));
315 #ifdef ENABLE_SHARED_LIBGCC
316 static void init_gcc_specs
PARAMS ((struct obstack
*,
317 const char *, const char *,
320 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
321 static const char *convert_filename
PARAMS ((const char *, int, int));
324 /* The Specs Language
326 Specs are strings containing lines, each of which (if not blank)
327 is made up of a program name, and arguments separated by spaces.
328 The program name must be exact and start from root, since no path
329 is searched and it is unreliable to depend on the current working directory.
330 Redirection of input or output is not supported; the subprograms must
331 accept filenames saying what files to read and write.
333 In addition, the specs can contain %-sequences to substitute variable text
334 or for conditional text. Here is a table of all defined %-sequences.
335 Note that spaces are not generated automatically around the results of
336 expanding these sequences; therefore, you can concatenate them together
337 or with constant text in a single argument.
339 %% substitute one % into the program name or argument.
340 %i substitute the name of the input file being processed.
341 %b substitute the basename of the input file being processed.
342 This is the substring up to (and not including) the last period
343 and not including the directory.
344 %B same as %b, but include the file suffix (text after the last period).
346 substitute a file name that has suffix SUFFIX and is chosen
347 once per compilation, and mark the argument a la %d. To reduce
348 exposure to denial-of-service attacks, the file name is now
349 chosen in a way that is hard to predict even when previously
350 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
351 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
352 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
353 had been pre-processed. Previously, %g was simply substituted
354 with a file name chosen once per compilation, without regard
355 to any appended suffix (which was therefore treated just like
356 ordinary text), making such attacks more likely to succeed.
358 like %g, but generates a new temporary file name even if %uSUFFIX
361 substitutes the last file name generated with %uSUFFIX, generating a
362 new one if there is no such last file name. In the absence of any
363 %uSUFFIX, this is just like %gSUFFIX, except they don't share
364 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
365 would involve the generation of two distinct file names, one
366 for each `%g.s' and another for each `%U.s'. Previously, %U was
367 simply substituted with a file name chosen for the previous %u,
368 without regard to any appended suffix.
370 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
371 writable, and if save-temps is off; otherwise, substitute the name
372 of a temporary file, just like %u. This temporary file is not
373 meant for communication between processes, but rather as a junk
376 substitutes .SUFFIX for the suffixes of a matched switch's args when
377 it is subsequently output with %*. SUFFIX is terminated by the next
379 %d marks the argument containing or following the %d as a
380 temporary file name, so that that file will be deleted if CC exits
381 successfully. Unlike %g, this contributes no text to the argument.
382 %w marks the argument containing or following the %w as the
383 "output file" of this compilation. This puts the argument
384 into the sequence of arguments that %o will substitute later.
386 like %{...} but mark last argument supplied within
387 as a file to be deleted on failure.
388 %o substitutes the names of all the output files, with spaces
389 automatically placed around them. You should write spaces
390 around the %o as well or the results are undefined.
391 %o is for use in the specs for running the linker.
392 Input files whose names have no recognized suffix are not compiled
393 at all, but they are included among the output files, so they will
395 %O substitutes the suffix for object files. Note that this is
396 handled specially when it immediately follows %g, %u, or %U
397 (with or without a suffix argument) because of the need for
398 those to form complete file names. The handling is such that
399 %O is treated exactly as if it had already been substituted,
400 except that %g, %u, and %U do not currently support additional
401 SUFFIX characters following %O as they would following, for
403 %p substitutes the standard macro predefinitions for the
404 current target machine. Use this when running cpp.
405 %P like %p, but puts `__' before and after the name of each macro.
406 (Except macros that already have __.)
408 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
409 %s current argument is the name of a library or startup file of some sort.
410 Search for that file in a standard list of directories
411 and substitute the full name found.
412 %eSTR Print STR as an error message. STR is terminated by a newline.
413 Use this when inconsistent options are detected.
414 %nSTR Print STR as an notice. STR is terminated by a newline.
415 %x{OPTION} Accumulate an option for %X.
416 %X Output the accumulated linker options specified by compilations.
417 %Y Output the accumulated assembler options specified by compilations.
418 %Z Output the accumulated preprocessor options specified by compilations.
419 %v1 Substitute the major version number of GCC.
420 (For version 2.5.3, this is 2.)
421 %v2 Substitute the minor version number of GCC.
422 (For version 2.5.3, this is 5.)
423 %v3 Substitute the patch level number of GCC.
424 (For version 2.5.3, this is 3.)
425 %a process ASM_SPEC as a spec.
426 This allows config.h to specify part of the spec for running as.
427 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
428 used here. This can be used to run a post-processor after the
429 assembler has done its job.
430 %D Dump out a -L option for each directory in startfile_prefixes.
431 If multilib_dir is set, extra entries are generated with it affixed.
432 %l process LINK_SPEC as a spec.
433 %L process LIB_SPEC as a spec.
434 %G process LIBGCC_SPEC as a spec.
435 %M output multilib_dir with directory separators replaced with "_";
436 if multilib_dir is not set or is ".", output "".
437 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
438 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
439 %C process CPP_SPEC as a spec.
440 %1 process CC1_SPEC as a spec.
441 %2 process CC1PLUS_SPEC as a spec.
442 %| output "-" if the input for the current command is coming from a pipe.
443 %* substitute the variable part of a matched option. (See below.)
444 Note that each comma in the substituted string is replaced by
446 %{S} substitutes the -S switch, if that switch was given to CC.
447 If that switch was not specified, this substitutes nothing.
448 Here S is a metasyntactic variable.
449 %{S*} substitutes all the switches specified to CC whose names start
450 with -S. This is used for -o, -I, etc; switches that take
451 arguments. CC considers `-o foo' as being one switch whose
452 name starts with `o'. %{o*} would substitute this text,
453 including the space; thus, two arguments would be generated.
454 %{^S*} likewise, but don't put a blank between a switch and any args.
455 %{S*&T*} likewise, but preserve order of S and T options (the order
456 of S and T in the spec is not significant). Can be any number
457 of ampersand-separated variables; for each the wild card is
458 optional. Useful for CPP as %{D*&U*&A*}.
459 %{S*:X} substitutes X if one or more switches whose names start with -S are
460 specified to CC. Note that the tail part of the -S option
461 (i.e. the part matched by the `*') will be substituted for each
462 occurrence of %* within X.
463 %{<S} remove all occurrences of -S from the command line.
464 Note - this option is position dependent. % commands in the
465 spec string before this option will see -S, % commands in the
466 spec string after this option will not.
467 %{S:X} substitutes X, but only if the -S switch was given to CC.
468 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
469 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
470 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
471 %{.S:X} substitutes X, but only if processing a file with suffix S.
472 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
473 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
474 combined with ! and . as above binding stronger than the OR.
475 %(Spec) processes a specification defined in a specs file as *Spec:
476 %[Spec] as above, but put __ around -D arguments
478 The conditional text X in a %{S:X} or %{!S:X} construct may contain
479 other nested % constructs or spaces, or even newlines. They are
480 processed as usual, as described above.
482 The -O, -f, -m, and -W switches are handled specifically in these
483 constructs. If another value of -O or the negated form of a -f, -m, or
484 -W switch is found later in the command line, the earlier switch
485 value is ignored, except with {S*} where S is just one letter; this
486 passes all matching options.
488 The character | at the beginning of the predicate text is used to indicate
489 that a command should be piped to the following command, but only if -pipe
492 Note that it is built into CC which switches take arguments and which
493 do not. You might think it would be useful to generalize this to
494 allow each compiler's spec to say which switches take arguments. But
495 this cannot be done in a consistent fashion. CC cannot even decide
496 which input files have been specified without knowing which switches
497 take arguments, and it must know which input files to compile in order
498 to tell which compilers to run.
500 CC also knows implicitly that arguments starting in `-l' are to be
501 treated as compiler output files, and passed to the linker in their
502 proper position among the other output files. */
504 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
506 /* config.h can define ASM_SPEC to provide extra args to the assembler
507 or extra switch-translations. */
512 /* config.h can define ASM_FINAL_SPEC to run a post processor after
513 the assembler has run. */
514 #ifndef ASM_FINAL_SPEC
515 #define ASM_FINAL_SPEC ""
518 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
519 or extra switch-translations. */
524 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
525 or extra switch-translations. */
530 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
531 or extra switch-translations. */
533 #define CC1PLUS_SPEC ""
536 /* config.h can define LINK_SPEC to provide extra args to the linker
537 or extra switch-translations. */
542 /* config.h can define LIB_SPEC to override the default libraries. */
544 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
547 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
550 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
551 /* Have gcc do the search for libgcc.a. */
552 #define LIBGCC_SPEC "libgcc.a%s"
554 #define LIBGCC_SPEC "-lgcc"
558 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
559 #ifndef STARTFILE_SPEC
560 #define STARTFILE_SPEC \
561 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
564 /* config.h can define SWITCHES_NEED_SPACES to control which options
565 require spaces between the option and the argument. */
566 #ifndef SWITCHES_NEED_SPACES
567 #define SWITCHES_NEED_SPACES ""
570 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
572 #define ENDFILE_SPEC ""
576 #define LINKER_NAME "collect2"
579 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
581 #ifndef ASM_DEBUG_SPEC
582 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
583 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
584 # define ASM_DEBUG_SPEC \
585 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
586 ? "%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}" \
587 : "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}")
589 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
590 # define ASM_DEBUG_SPEC "%{g*:--gstabs}"
592 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
593 # define ASM_DEBUG_SPEC "%{g*:--gdwarf2}"
597 #ifndef ASM_DEBUG_SPEC
598 # define ASM_DEBUG_SPEC ""
601 /* Here is the spec for running the linker, after compiling all files. */
603 /* This is overridable by the target in case they need to specify the
604 -lgcc and -lc order specially, yet not require them to override all
605 of LINK_COMMAND_SPEC. */
606 #ifndef LINK_GCC_C_SEQUENCE_SPEC
607 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
610 /* -u* was put back because both BSD and SysV seem to support it. */
611 /* %{static:} simply prevents an error message if the target machine
612 doesn't handle -static. */
613 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
614 scripts which exist in user specified directories, or in standard
616 #ifndef LINK_COMMAND_SPEC
617 #define LINK_COMMAND_SPEC "\
618 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
619 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
620 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
621 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%(link_gcc_c_sequence)}}\
622 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
625 #ifndef LINK_LIBGCC_SPEC
626 # ifdef LINK_LIBGCC_SPECIAL
627 /* Don't generate -L options for startfile prefix list. */
628 # define LINK_LIBGCC_SPEC ""
630 /* Do generate them. */
631 # define LINK_LIBGCC_SPEC "%D"
635 #ifndef STARTFILE_PREFIX_SPEC
636 # define STARTFILE_PREFIX_SPEC ""
639 static const char *asm_debug
;
640 static const char *cpp_spec
= CPP_SPEC
;
641 static const char *cpp_predefines
= CPP_PREDEFINES
;
642 static const char *cc1_spec
= CC1_SPEC
;
643 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
644 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
645 static const char *asm_spec
= ASM_SPEC
;
646 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
647 static const char *link_spec
= LINK_SPEC
;
648 static const char *lib_spec
= LIB_SPEC
;
649 static const char *libgcc_spec
= LIBGCC_SPEC
;
650 static const char *endfile_spec
= ENDFILE_SPEC
;
651 static const char *startfile_spec
= STARTFILE_SPEC
;
652 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
653 static const char *linker_name_spec
= LINKER_NAME
;
654 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
655 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
656 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
658 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
659 There should be no need to override these in target dependent files,
660 but we need to copy them to the specs file so that newer versions
661 of the GCC driver can correctly drive older tool chains with the
662 appropriate -B options. */
664 /* When cpplib handles traditional preprocessing, get rid of this, and
665 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
666 that we default the front end language better. */
667 static const char *trad_capable_cpp
=
668 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
670 static const char *cpp_unique_options
=
671 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
672 %{CC:%{!E:%eGNU C does not support -CC without using -E}}\
673 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*} %{P} %{$} %I\
674 %{MD:-MD %W{!o: %b.d}%W{o*:%.d%*}}\
675 %{MMD:-MMD %W{!o: %b.d}%W{o*:%.d%*}}\
676 %{M} %{MM} %W{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
677 %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}}\
678 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3 -D__GXX_ABI_VERSION=101}\
679 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
680 %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i\
683 /* This contains cpp options which are common with cc1_options and are passed
684 only when preprocessing only to avoid duplication. We pass the cc1 spec
685 options to the preprocessor so that it the cc1 spec may manipulate
686 options used to set target flags. Those special target flags settings may
687 in turn cause preprocessor symbols to be defined specially. */
688 static const char *cpp_options
=
689 "%(cpp_unique_options) %1 %{std*} %{W*&pedantic*} %{w} %{m*} %{f*}\
692 /* This contains cpp options which are not passed when the preprocessor
693 output will be used by another program. */
694 static const char *cpp_debug_options
= "%{d*}";
696 /* NB: This is shared amongst all front-ends. */
697 static const char *cc1_options
=
698 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
699 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
700 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*} %{ansi}\
701 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
702 %{Qn:-fno-ident} %{--help:--help}\
703 %{--target-help:--target-help}\
704 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
705 %{fsyntax-only:-o %j} %{-param*}";
707 static const char *asm_options
=
708 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
710 static const char *invoke_as
=
711 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
713 /* Some compilers have limits on line lengths, and the multilib_select
714 and/or multilib_matches strings can be very long, so we build them at
716 static struct obstack multilib_obstack
;
717 static const char *multilib_select
;
718 static const char *multilib_matches
;
719 static const char *multilib_defaults
;
720 static const char *multilib_exclusions
;
721 #include "multilib.h"
723 /* Check whether a particular argument is a default argument. */
725 #ifndef MULTILIB_DEFAULTS
726 #define MULTILIB_DEFAULTS { "" }
729 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
733 struct user_specs
*next
;
734 const char *filename
;
737 static struct user_specs
*user_specs_head
, *user_specs_tail
;
739 /* This defines which switch letters take arguments. */
741 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
742 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
743 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
744 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
745 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'B' || (CHAR) == 'b')
747 #ifndef SWITCH_TAKES_ARG
748 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
751 /* This defines which multi-letter switches take arguments. */
753 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
754 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
755 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
756 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
757 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
758 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
759 || !strcmp (STR, "isystem") || !strcmp (STR, "-param") \
760 || !strcmp (STR, "specs") \
761 || !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ"))
763 #ifndef WORD_SWITCH_TAKES_ARG
764 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
767 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
768 /* This defines which switches stop a full compilation. */
769 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
770 ((CHAR) == 'c' || (CHAR) == 'S')
772 #ifndef SWITCH_CURTAILS_COMPILATION
773 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
774 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
778 /* Record the mapping from file suffixes for compilation specs. */
782 const char *suffix
; /* Use this compiler for input files
783 whose names end in this suffix. */
785 const char *spec
; /* To use this compiler, run this spec. */
787 const char *cpp_spec
; /* If non-NULL, substitute this spec
788 for `%C', rather than the usual
792 /* Pointer to a vector of `struct compiler' that gives the spec for
793 compiling a file, based on its suffix.
794 A file that does not end in any of these suffixes will be passed
795 unchanged to the loader and nothing else will be done to it.
797 An entry containing two 0s is used to terminate the vector.
799 If multiple entries match a file, the last matching one is used. */
801 static struct compiler
*compilers
;
803 /* Number of entries in `compilers', not counting the null terminator. */
805 static int n_compilers
;
807 /* The default list of file name suffixes and their compilation specs. */
809 static const struct compiler default_compilers
[] =
811 /* Add lists of suffixes of known languages here. If those languages
812 were not present when we built the driver, we will hit these copies
813 and be given a more meaningful error than "file not used since
814 linking is not done". */
815 {".m", "#Objective-C", 0}, {".mi", "#Objective-C", 0},
816 {".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0},
817 {".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0},
819 {".ads", "#Ada", 0}, {".adb", "#Ada", 0},
820 {".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0},
821 {".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0},
822 {".r", "#Ratfor", 0},
823 {".p", "#Pascal", 0}, {".pas", "#Pascal", 0},
824 {".java", "#Java", 0}, {".class", "#Java", 0},
825 {".zip", "#Java", 0}, {".jar", "#Java", 0},
826 /* Next come the entries for C. */
829 /* cc1 has an integrated ISO C preprocessor. We should invoke the
830 external preprocessor if -save-temps is given. */
831 "%{E|M|MM:%(trad_capable_cpp) %{ansi:-std=c89} %(cpp_options)\
832 %(cpp_debug_options)}\
834 %{traditional|ftraditional:\
835 %eGNU C no longer supports -traditional without -E}\
836 %{save-temps|traditional-cpp:%(trad_capable_cpp) \
837 %{ansi:-std=c89} %(cpp_options) %b.i \n\
838 cc1 -fpreprocessed %b.i %(cc1_options)}\
839 %{!save-temps:%{!traditional-cpp:\
840 cc1 %{ansi:-std=c89} %(cpp_unique_options) %(cc1_options)}}\
841 %{!fsyntax-only:%(invoke_as)}}}}", 0},
843 "%{!E:%e-E required when input is from standard input}\
844 %(trad_capable_cpp) %{ansi:-std=c89} %(cpp_options)", 0},
845 {".h", "@c-header", 0},
847 "%{!E:%ecompilation of header file requested} \
848 %(trad_capable_cpp) %{ansi:-std=c89} %(cpp_options) %(cpp_debug_options)",
850 {".i", "@cpp-output", 0},
852 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0},
853 {".s", "@assembler", 0},
855 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0},
856 {".S", "@assembler-with-cpp", 0},
857 {"@assembler-with-cpp",
858 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
859 %{E|M|MM:%(cpp_debug_options)}\
860 %{!M:%{!MM:%{!E:%{!S:-o %{|!pipe:%g.s} |\n\
861 as %(asm_debug) %(asm_options) %{!pipe:%g.s} %A }}}}", 0},
863 /* Mark end of table */
867 /* Number of elements in default_compilers, not counting the terminator. */
869 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
871 /* A vector of options to give to the linker.
872 These options are accumulated by %x,
873 and substituted into the linker command with %X. */
874 static int n_linker_options
;
875 static char **linker_options
;
877 /* A vector of options to give to the assembler.
878 These options are accumulated by -Wa,
879 and substituted into the assembler command with %Y. */
880 static int n_assembler_options
;
881 static char **assembler_options
;
883 /* A vector of options to give to the preprocessor.
884 These options are accumulated by -Wp,
885 and substituted into the preprocessor command with %Z. */
886 static int n_preprocessor_options
;
887 static char **preprocessor_options
;
889 /* Define how to map long options into short ones. */
891 /* This structure describes one mapping. */
894 /* The long option's name. */
895 const char *const name
;
896 /* The equivalent short option. */
897 const char *const equivalent
;
898 /* Argument info. A string of flag chars; NULL equals no options.
899 a => argument required.
900 o => argument optional.
901 j => join argument to equivalent, making one word.
902 * => require other text after NAME as an argument. */
903 const char *const arg_info
;
906 /* This is the table of mappings. Mappings are tried sequentially
907 for each option encountered; the first one that matches, wins. */
909 static const struct option_map option_map
[] =
911 {"--all-warnings", "-Wall", 0},
912 {"--ansi", "-ansi", 0},
913 {"--assemble", "-S", 0},
914 {"--assert", "-A", "a"},
915 {"--classpath", "-fclasspath=", "aj"},
916 {"--bootclasspath", "-fbootclasspath=", "aj"},
917 {"--CLASSPATH", "-fclasspath=", "aj"},
918 {"--comments", "-C", 0},
919 {"--comments-in-macros", "-CC", 0},
920 {"--compile", "-c", 0},
921 {"--debug", "-g", "oj"},
922 {"--define-macro", "-D", "aj"},
923 {"--dependencies", "-M", 0},
924 {"--dump", "-d", "a"},
925 {"--dumpbase", "-dumpbase", "a"},
926 {"--entry", "-e", 0},
927 {"--extra-warnings", "-W", 0},
928 {"--for-assembler", "-Wa", "a"},
929 {"--for-linker", "-Xlinker", "a"},
930 {"--force-link", "-u", "a"},
931 {"--imacros", "-imacros", "a"},
932 {"--include", "-include", "a"},
933 {"--include-barrier", "-I-", 0},
934 {"--include-directory", "-I", "aj"},
935 {"--include-directory-after", "-idirafter", "a"},
936 {"--include-prefix", "-iprefix", "a"},
937 {"--include-with-prefix", "-iwithprefix", "a"},
938 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
939 {"--include-with-prefix-after", "-iwithprefix", "a"},
940 {"--language", "-x", "a"},
941 {"--library-directory", "-L", "a"},
942 {"--machine", "-m", "aj"},
943 {"--machine-", "-m", "*j"},
944 {"--no-line-commands", "-P", 0},
945 {"--no-precompiled-includes", "-noprecomp", 0},
946 {"--no-standard-includes", "-nostdinc", 0},
947 {"--no-standard-libraries", "-nostdlib", 0},
948 {"--no-warnings", "-w", 0},
949 {"--optimize", "-O", "oj"},
950 {"--output", "-o", "a"},
951 {"--output-class-directory", "-foutput-class-dir=", "ja"},
952 {"--param", "--param", "a"},
953 {"--pedantic", "-pedantic", 0},
954 {"--pedantic-errors", "-pedantic-errors", 0},
955 {"--pipe", "-pipe", 0},
956 {"--prefix", "-B", "a"},
957 {"--preprocess", "-E", 0},
958 {"--print-search-dirs", "-print-search-dirs", 0},
959 {"--print-file-name", "-print-file-name=", "aj"},
960 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
961 {"--print-missing-file-dependencies", "-MG", 0},
962 {"--print-multi-lib", "-print-multi-lib", 0},
963 {"--print-multi-directory", "-print-multi-directory", 0},
964 {"--print-prog-name", "-print-prog-name=", "aj"},
965 {"--profile", "-p", 0},
966 {"--profile-blocks", "-a", 0},
967 {"--quiet", "-q", 0},
968 {"--resource", "-fcompile-resource=", "aj"},
969 {"--save-temps", "-save-temps", 0},
970 {"--shared", "-shared", 0},
971 {"--silent", "-q", 0},
972 {"--specs", "-specs=", "aj"},
973 {"--static", "-static", 0},
974 {"--std", "-std=", "aj"},
975 {"--symbolic", "-symbolic", 0},
976 {"--target", "-b", "a"},
977 {"--time", "-time", 0},
978 {"--trace-includes", "-H", 0},
979 {"--traditional", "-traditional", 0},
980 {"--traditional-cpp", "-traditional-cpp", 0},
981 {"--trigraphs", "-trigraphs", 0},
982 {"--undefine-macro", "-U", "aj"},
983 {"--use-version", "-V", "a"},
984 {"--user-dependencies", "-MM", 0},
985 {"--verbose", "-v", 0},
986 {"--warn-", "-W", "*j"},
987 {"--write-dependencies", "-MD", 0},
988 {"--write-user-dependencies", "-MMD", 0},
993 #ifdef TARGET_OPTION_TRANSLATE_TABLE
994 static const struct {
995 const char *const option_found
;
996 const char *const replacements
;
997 } target_option_translations
[] =
999 TARGET_OPTION_TRANSLATE_TABLE
,
1004 /* Translate the options described by *ARGCP and *ARGVP.
1005 Make a new vector and store it back in *ARGVP,
1006 and store its length in *ARGVC. */
1009 translate_options (argcp
, argvp
)
1011 const char *const **argvp
;
1015 const char *const *argv
= *argvp
;
1016 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1018 (const char **) xmalloc (newvsize
);
1022 newv
[newindex
++] = argv
[i
++];
1026 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1030 target_option_translations
[tott_idx
].option_found
;
1033 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1040 for (sp
= target_option_translations
[tott_idx
].replacements
;
1047 newvsize
+= spaces
* sizeof (const char *);
1048 newv
= (const char **) xrealloc (newv
, newvsize
);
1050 sp
= target_option_translations
[tott_idx
].replacements
;
1059 newv
[newindex
++] = np
;
1060 while (*np
!= ' ' && *np
)
1071 if (target_option_translations
[tott_idx
].option_found
)
1075 /* Translate -- options. */
1076 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1079 /* Find a mapping that applies to this option. */
1080 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1082 size_t optlen
= strlen (option_map
[j
].name
);
1083 size_t arglen
= strlen (argv
[i
]);
1084 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1085 const char *arginfo
= option_map
[j
].arg_info
;
1090 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1092 const char *arg
= 0;
1094 if (arglen
< optlen
)
1097 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1098 if (strlen (option_map
[k
].name
) >= arglen
1099 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1101 error ("ambiguous abbreviation %s", argv
[i
]);
1105 if (k
!= ARRAY_SIZE (option_map
))
1109 if (arglen
> optlen
)
1111 /* If the option has an argument, accept that. */
1112 if (argv
[i
][optlen
] == '=')
1113 arg
= argv
[i
] + optlen
+ 1;
1115 /* If this mapping requires extra text at end of name,
1116 accept that as "argument". */
1117 else if (strchr (arginfo
, '*') != 0)
1118 arg
= argv
[i
] + optlen
;
1120 /* Otherwise, extra text at end means mismatch.
1121 Try other mappings. */
1126 else if (strchr (arginfo
, '*') != 0)
1128 error ("incomplete `%s' option", option_map
[j
].name
);
1132 /* Handle arguments. */
1133 if (strchr (arginfo
, 'a') != 0)
1139 error ("missing argument to `%s' option",
1140 option_map
[j
].name
);
1147 else if (strchr (arginfo
, '*') != 0)
1149 else if (strchr (arginfo
, 'o') == 0)
1152 error ("extraneous argument to `%s' option",
1153 option_map
[j
].name
);
1157 /* Store the translation as one argv elt or as two. */
1158 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1159 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1163 newv
[newindex
++] = option_map
[j
].equivalent
;
1164 newv
[newindex
++] = arg
;
1167 newv
[newindex
++] = option_map
[j
].equivalent
;
1175 /* Handle old-fashioned options--just copy them through,
1176 with their arguments. */
1177 else if (argv
[i
][0] == '-')
1179 const char *p
= argv
[i
] + 1;
1183 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1184 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1185 else if (WORD_SWITCH_TAKES_ARG (p
))
1186 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1187 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1190 else if (! strcmp (p
, "Xlinker"))
1193 /* Watch out for an option at the end of the command line that
1194 is missing arguments, and avoid skipping past the end of the
1196 if (nskip
+ i
> argc
)
1201 newv
[newindex
++] = argv
[i
++];
1206 /* Ordinary operands, or +e options. */
1207 newv
[newindex
++] = argv
[i
++];
1222 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1223 be considered whitespace. */
1224 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1226 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1240 /* Structures to keep track of prefixes to try when looking for files. */
1244 const char *prefix
; /* String to prepend to the path. */
1245 struct prefix_list
*next
; /* Next in linked list. */
1246 int require_machine_suffix
; /* Don't use without machine_suffix. */
1247 /* 2 means try both machine_suffix and just_machine_suffix. */
1248 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1249 int priority
; /* Sort key - priority within list */
1254 struct prefix_list
*plist
; /* List of prefixes to try */
1255 int max_len
; /* Max length of a prefix in PLIST */
1256 const char *name
; /* Name of this list (used in config stuff) */
1259 /* List of prefixes to try when looking for executables. */
1261 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1263 /* List of prefixes to try when looking for startup (crt0) files. */
1265 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1267 /* List of prefixes to try when looking for include files. */
1269 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1271 /* Suffix to attach to directories searched for commands.
1272 This looks like `MACHINE/VERSION/'. */
1274 static const char *machine_suffix
= 0;
1276 /* Suffix to attach to directories searched for commands.
1277 This is just `MACHINE/'. */
1279 static const char *just_machine_suffix
= 0;
1281 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1283 static const char *gcc_exec_prefix
;
1285 /* Default prefixes to attach to command names. */
1287 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1288 #undef MD_EXEC_PREFIX
1289 #undef MD_STARTFILE_PREFIX
1290 #undef MD_STARTFILE_PREFIX_1
1293 /* If no prefixes defined, use the null string, which will disable them. */
1294 #ifndef MD_EXEC_PREFIX
1295 #define MD_EXEC_PREFIX ""
1297 #ifndef MD_STARTFILE_PREFIX
1298 #define MD_STARTFILE_PREFIX ""
1300 #ifndef MD_STARTFILE_PREFIX_1
1301 #define MD_STARTFILE_PREFIX_1 ""
1304 /* Supply defaults for the standard prefixes. */
1306 #ifndef STANDARD_EXEC_PREFIX
1307 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1309 #ifndef STANDARD_STARTFILE_PREFIX
1310 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1312 #ifndef TOOLDIR_BASE_PREFIX
1313 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1315 #ifndef STANDARD_BINDIR_PREFIX
1316 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1319 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1320 static const char *const standard_exec_prefix_1
= "/usr/lib/gcc/";
1321 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1323 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1324 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1325 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1326 static const char *const standard_startfile_prefix_1
= "/lib/";
1327 static const char *const standard_startfile_prefix_2
= "/usr/lib/";
1329 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1330 static const char *tooldir_prefix
;
1332 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1334 /* Subdirectory to use for locating libraries. Set by
1335 set_multilib_dir based on the compilation options. */
1337 static const char *multilib_dir
;
1339 /* Structure to keep track of the specs that have been defined so far.
1340 These are accessed using %(specname) or %[specname] in a compiler
1345 /* The following 2 fields must be first */
1346 /* to allow EXTRA_SPECS to be initialized */
1347 const char *name
; /* name of the spec. */
1348 const char *ptr
; /* available ptr if no static pointer */
1350 /* The following fields are not initialized */
1351 /* by EXTRA_SPECS */
1352 const char **ptr_spec
; /* pointer to the spec itself. */
1353 struct spec_list
*next
; /* Next spec in linked list. */
1354 int name_len
; /* length of the name */
1355 int alloc_p
; /* whether string was allocated */
1358 #define INIT_STATIC_SPEC(NAME,PTR) \
1359 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1361 /* List of statically defined specs. */
1362 static struct spec_list static_specs
[] =
1364 INIT_STATIC_SPEC ("asm", &asm_spec
),
1365 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1366 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1367 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1368 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1369 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1370 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1371 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1372 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1373 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1374 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1375 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1376 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1377 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1378 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1379 INIT_STATIC_SPEC ("link", &link_spec
),
1380 INIT_STATIC_SPEC ("lib", &lib_spec
),
1381 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1382 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1383 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1384 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1385 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1386 INIT_STATIC_SPEC ("version", &compiler_version
),
1387 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1388 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1389 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1390 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1391 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1392 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1393 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1394 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1395 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1396 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1397 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1400 #ifdef EXTRA_SPECS /* additional specs needed */
1401 /* Structure to keep track of just the first two args of a spec_list.
1402 That is all that the EXTRA_SPECS macro gives us. */
1405 const char *const name
;
1406 const char *const ptr
;
1409 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1410 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1413 /* List of dynamically allocates specs that have been defined so far. */
1415 static struct spec_list
*specs
= (struct spec_list
*) 0;
1417 /* Add appropriate libgcc specs to OBSTACK, taking into account
1418 various permutations of -shared-libgcc, -shared, and such. */
1420 #ifdef ENABLE_SHARED_LIBGCC
1422 init_gcc_specs (obstack
, shared_name
, static_name
, eh_name
)
1423 struct obstack
*obstack
;
1424 const char *shared_name
;
1425 const char *static_name
;
1426 const char *eh_name
;
1430 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
,
1431 "}%{!static:%{!static-libgcc:",
1432 "%{!shared:%{!shared-libgcc:", static_name
, " ",
1433 eh_name
, "}%{shared-libgcc:", shared_name
, " ",
1434 static_name
, "}}%{shared:",
1436 "%{shared-libgcc:", shared_name
,
1437 "}%{!shared-libgcc:", static_name
, "}",
1443 obstack_grow (obstack
, buf
, strlen (buf
));
1446 #endif /* ENABLE_SHARED_LIBGCC */
1448 /* Initialize the specs lookup routines. */
1453 struct spec_list
*next
= (struct spec_list
*) 0;
1454 struct spec_list
*sl
= (struct spec_list
*) 0;
1458 return; /* Already initialized. */
1461 notice ("Using built-in specs.\n");
1464 extra_specs
= (struct spec_list
*)
1465 xcalloc (sizeof (struct spec_list
), ARRAY_SIZE (extra_specs_1
));
1467 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1469 sl
= &extra_specs
[i
];
1470 sl
->name
= extra_specs_1
[i
].name
;
1471 sl
->ptr
= extra_specs_1
[i
].ptr
;
1473 sl
->name_len
= strlen (sl
->name
);
1474 sl
->ptr_spec
= &sl
->ptr
;
1479 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
1480 on ?: in file-scope variable initializations. */
1481 asm_debug
= ASM_DEBUG_SPEC
;
1483 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1485 sl
= &static_specs
[i
];
1490 #ifdef ENABLE_SHARED_LIBGCC
1491 /* ??? If neither -shared-libgcc nor --static-libgcc was
1492 seen, then we should be making an educated guess. Some proposed
1493 heuristics for ELF include:
1495 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1496 program will be doing dynamic loading, which will likely
1497 need the shared libgcc.
1499 (2) If "-ldl", then it's also a fair bet that we're doing
1502 (3) For each ET_DYN we're linking against (either through -lfoo
1503 or /some/path/foo.so), check to see whether it or one of
1504 its dependencies depends on a shared libgcc.
1508 If the runtime is fixed to look for program headers instead
1509 of calling __register_frame_info at all, for each object,
1510 use the shared libgcc if any EH symbol referenced.
1512 If crtstuff is fixed to not invoke __register_frame_info
1513 automatically, for each object, use the shared libgcc if
1514 any non-empty unwind section found.
1516 Doing any of this probably requires invoking an external program to
1517 do the actual object file scanning. */
1519 const char *p
= libgcc_spec
;
1522 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1523 when given the proper command line arguments. */
1526 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1528 init_gcc_specs (&obstack
,
1529 #ifdef NO_SHARED_LIBGCC_MULTILIB
1540 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1542 /* Ug. We don't know shared library extensions. Hope that
1543 systems that use this form don't do shared libraries. */
1544 init_gcc_specs (&obstack
,
1545 #ifdef NO_SHARED_LIBGCC_MULTILIB
1558 obstack_1grow (&obstack
, *p
);
1559 in_sep
= (*p
== ' ');
1564 obstack_1grow (&obstack
, '\0');
1565 libgcc_spec
= obstack_finish (&obstack
);
1568 #ifdef USE_AS_TRADITIONAL_FORMAT
1569 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1571 static const char tf
[] = "--traditional-format ";
1572 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1573 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1574 asm_spec
= obstack_finish (&obstack
);
1578 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1579 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1580 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1581 link_spec
= obstack_finish (&obstack
);
1587 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1588 removed; If the spec starts with a + then SPEC is added to the end of the
1592 set_spec (name
, spec
)
1596 struct spec_list
*sl
;
1597 const char *old_spec
;
1598 int name_len
= strlen (name
);
1601 /* If this is the first call, initialize the statically allocated specs. */
1604 struct spec_list
*next
= (struct spec_list
*) 0;
1605 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1607 sl
= &static_specs
[i
];
1614 /* See if the spec already exists. */
1615 for (sl
= specs
; sl
; sl
= sl
->next
)
1616 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1621 /* Not found - make it. */
1622 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1623 sl
->name
= xstrdup (name
);
1624 sl
->name_len
= name_len
;
1625 sl
->ptr_spec
= &sl
->ptr
;
1627 *(sl
->ptr_spec
) = "";
1632 old_spec
= *(sl
->ptr_spec
);
1633 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1634 ? concat (old_spec
, spec
+ 1, NULL
)
1639 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1642 /* Free the old spec. */
1643 if (old_spec
&& sl
->alloc_p
)
1644 free ((PTR
) old_spec
);
1649 /* Accumulate a command (program name and args), and run it. */
1651 /* Vector of pointers to arguments in the current line of specifications. */
1653 static const char **argbuf
;
1655 /* Number of elements allocated in argbuf. */
1657 static int argbuf_length
;
1659 /* Number of elements in argbuf currently in use (containing args). */
1661 static int argbuf_index
;
1663 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1664 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1667 static struct temp_name
{
1668 const char *suffix
; /* suffix associated with the code. */
1669 int length
; /* strlen (suffix). */
1670 int unique
; /* Indicates whether %g or %u/%U was used. */
1671 const char *filename
; /* associated filename. */
1672 int filename_length
; /* strlen (filename). */
1673 struct temp_name
*next
;
1676 /* Number of commands executed so far. */
1678 static int execution_count
;
1680 /* Number of commands that exited with a signal. */
1682 static int signal_count
;
1684 /* Name with which this program was invoked. */
1686 static const char *programname
;
1688 /* Clear out the vector of arguments (after a command is executed). */
1696 /* Add one argument to the vector at the end.
1697 This is done when a space is seen or at the end of the line.
1698 If DELETE_ALWAYS is nonzero, the arg is a filename
1699 and the file should be deleted eventually.
1700 If DELETE_FAILURE is nonzero, the arg is a filename
1701 and the file should be deleted if this compilation fails. */
1704 store_arg (arg
, delete_always
, delete_failure
)
1706 int delete_always
, delete_failure
;
1708 if (argbuf_index
+ 1 == argbuf_length
)
1710 = (const char **) xrealloc (argbuf
,
1711 (argbuf_length
*= 2) * sizeof (const char *));
1713 argbuf
[argbuf_index
++] = arg
;
1714 argbuf
[argbuf_index
] = 0;
1716 if (delete_always
|| delete_failure
)
1717 record_temp_file (arg
, delete_always
, delete_failure
);
1720 /* Load specs from a file name named FILENAME, replacing occurrences of
1721 various different types of line-endings, \r\n, \n\r and just \r, with
1725 load_specs (filename
)
1726 const char *filename
;
1730 struct stat statbuf
;
1737 notice ("Reading specs from %s\n", filename
);
1739 /* Open and stat the file. */
1740 desc
= open (filename
, O_RDONLY
, 0);
1742 pfatal_with_name (filename
);
1743 if (stat (filename
, &statbuf
) < 0)
1744 pfatal_with_name (filename
);
1746 /* Read contents of file into BUFFER. */
1747 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1748 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1750 pfatal_with_name (filename
);
1751 buffer
[readlen
] = 0;
1754 specs
= xmalloc (readlen
+ 1);
1756 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1762 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1764 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1778 /* Read compilation specs from a file named FILENAME,
1779 replacing the default ones.
1781 A suffix which starts with `*' is a definition for
1782 one of the machine-specific sub-specs. The "suffix" should be
1783 *asm, *cc1, *cpp, *link, *startfile, etc.
1784 The corresponding spec is stored in asm_spec, etc.,
1785 rather than in the `compilers' vector.
1787 Anything invalid in the file is a fatal error. */
1790 read_specs (filename
, main_p
)
1791 const char *filename
;
1797 buffer
= load_specs (filename
);
1799 /* Scan BUFFER for specs, putting them in the vector. */
1805 char *in
, *out
, *p1
, *p2
, *p3
;
1807 /* Advance P in BUFFER to the next nonblank nocomment line. */
1808 p
= skip_whitespace (p
);
1812 /* Is this a special command that starts with '%'? */
1813 /* Don't allow this for the main specs file, since it would
1814 encourage people to overwrite it. */
1815 if (*p
== '%' && !main_p
)
1818 while (*p
&& *p
!= '\n')
1824 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1825 && (p1
[sizeof "%include" - 1] == ' '
1826 || p1
[sizeof "%include" - 1] == '\t'))
1830 p1
+= sizeof ("%include");
1831 while (*p1
== ' ' || *p1
== '\t')
1834 if (*p1
++ != '<' || p
[-2] != '>')
1835 fatal ("specs %%include syntax malformed after %ld characters",
1836 (long) (p1
- buffer
+ 1));
1839 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1840 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1843 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1844 && (p1
[sizeof "%include_noerr" - 1] == ' '
1845 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1849 p1
+= sizeof "%include_noerr";
1850 while (*p1
== ' ' || *p1
== '\t')
1853 if (*p1
++ != '<' || p
[-2] != '>')
1854 fatal ("specs %%include syntax malformed after %ld characters",
1855 (long) (p1
- buffer
+ 1));
1858 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1860 read_specs (new_filename
, FALSE
);
1861 else if (verbose_flag
)
1862 notice ("could not find specs file %s\n", p1
);
1865 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1866 && (p1
[sizeof "%rename" - 1] == ' '
1867 || p1
[sizeof "%rename" - 1] == '\t'))
1870 struct spec_list
*sl
;
1871 struct spec_list
*newsl
;
1873 /* Get original name. */
1874 p1
+= sizeof "%rename";
1875 while (*p1
== ' ' || *p1
== '\t')
1878 if (! ISALPHA ((unsigned char) *p1
))
1879 fatal ("specs %%rename syntax malformed after %ld characters",
1880 (long) (p1
- buffer
));
1883 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1886 if (*p2
!= ' ' && *p2
!= '\t')
1887 fatal ("specs %%rename syntax malformed after %ld characters",
1888 (long) (p2
- buffer
));
1892 while (*p2
== ' ' || *p2
== '\t')
1895 if (! ISALPHA ((unsigned char) *p2
))
1896 fatal ("specs %%rename syntax malformed after %ld characters",
1897 (long) (p2
- buffer
));
1899 /* Get new spec name. */
1901 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1905 fatal ("specs %%rename syntax malformed after %ld characters",
1906 (long) (p3
- buffer
));
1909 for (sl
= specs
; sl
; sl
= sl
->next
)
1910 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1914 fatal ("specs %s spec was not found to be renamed", p1
);
1916 if (strcmp (p1
, p2
) == 0)
1919 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
1920 if (strcmp (newsl
->name
, p2
) == 0)
1921 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
1926 notice ("rename spec %s to %s\n", p1
, p2
);
1928 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
1932 set_spec (p2
, *(sl
->ptr_spec
));
1934 free ((PTR
) *(sl
->ptr_spec
));
1936 *(sl
->ptr_spec
) = "";
1941 fatal ("specs unknown %% command after %ld characters",
1942 (long) (p1
- buffer
));
1945 /* Find the colon that should end the suffix. */
1947 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1950 /* The colon shouldn't be missing. */
1952 fatal ("specs file malformed after %ld characters",
1953 (long) (p1
- buffer
));
1955 /* Skip back over trailing whitespace. */
1957 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1960 /* Copy the suffix to a string. */
1961 suffix
= save_string (p
, p2
- p
);
1962 /* Find the next line. */
1963 p
= skip_whitespace (p1
+ 1);
1965 fatal ("specs file malformed after %ld characters",
1966 (long) (p
- buffer
));
1969 /* Find next blank line or end of string. */
1970 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1973 /* Specs end at the blank line and do not include the newline. */
1974 spec
= save_string (p
, p1
- p
);
1977 /* Delete backslash-newline sequences from the spec. */
1982 if (in
[0] == '\\' && in
[1] == '\n')
1984 else if (in
[0] == '#')
1985 while (*in
&& *in
!= '\n')
1993 if (suffix
[0] == '*')
1995 if (! strcmp (suffix
, "*link_command"))
1996 link_command_spec
= spec
;
1998 set_spec (suffix
+ 1, spec
);
2002 /* Add this pair to the vector. */
2004 = ((struct compiler
*)
2005 xrealloc (compilers
,
2006 (n_compilers
+ 2) * sizeof (struct compiler
)));
2008 compilers
[n_compilers
].suffix
= suffix
;
2009 compilers
[n_compilers
].spec
= spec
;
2011 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2015 link_command_spec
= spec
;
2018 if (link_command_spec
== 0)
2019 fatal ("spec file has no spec for linking");
2022 /* Record the names of temporary files we tell compilers to write,
2023 and delete them at the end of the run. */
2025 /* This is the common prefix we use to make temp file names.
2026 It is chosen once for each run of this program.
2027 It is substituted into a spec by %g or %j.
2028 Thus, all temp file names contain this prefix.
2029 In practice, all temp file names start with this prefix.
2031 This prefix comes from the envvar TMPDIR if it is defined;
2032 otherwise, from the P_tmpdir macro if that is defined;
2033 otherwise, in /usr/tmp or /tmp;
2034 or finally the current directory if all else fails. */
2036 static const char *temp_filename
;
2038 /* Length of the prefix. */
2040 static int temp_filename_length
;
2042 /* Define the list of temporary files to delete. */
2047 struct temp_file
*next
;
2050 /* Queue of files to delete on success or failure of compilation. */
2051 static struct temp_file
*always_delete_queue
;
2052 /* Queue of files to delete on failure of compilation. */
2053 static struct temp_file
*failure_delete_queue
;
2055 /* Record FILENAME as a file to be deleted automatically.
2056 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2057 otherwise delete it in any case.
2058 FAIL_DELETE nonzero means delete it if a compilation step fails;
2059 otherwise delete it in any case. */
2062 record_temp_file (filename
, always_delete
, fail_delete
)
2063 const char *filename
;
2067 char *const name
= xstrdup (filename
);
2071 struct temp_file
*temp
;
2072 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2073 if (! strcmp (name
, temp
->name
))
2076 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2077 temp
->next
= always_delete_queue
;
2079 always_delete_queue
= temp
;
2086 struct temp_file
*temp
;
2087 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2088 if (! strcmp (name
, temp
->name
))
2091 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2092 temp
->next
= failure_delete_queue
;
2094 failure_delete_queue
= temp
;
2100 /* Delete all the temporary files whose names we previously recorded. */
2103 delete_if_ordinary (name
)
2110 printf ("Delete %s? (y or n) ", name
);
2114 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2117 if (i
== 'y' || i
== 'Y')
2119 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
2120 if (unlink (name
) < 0)
2122 perror_with_name (name
);
2126 delete_temp_files ()
2128 struct temp_file
*temp
;
2130 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2131 delete_if_ordinary (temp
->name
);
2132 always_delete_queue
= 0;
2135 /* Delete all the files to be deleted on error. */
2138 delete_failure_queue ()
2140 struct temp_file
*temp
;
2142 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2143 delete_if_ordinary (temp
->name
);
2147 clear_failure_queue ()
2149 failure_delete_queue
= 0;
2152 /* Build a list of search directories from PATHS.
2153 PREFIX is a string to prepend to the list.
2154 If CHECK_DIR_P is non-zero we ensure the directory exists.
2155 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2156 It is also used by the --print-search-dirs flag. */
2159 build_search_list (paths
, prefix
, check_dir_p
)
2160 struct path_prefix
*paths
;
2164 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2166 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2167 int first_time
= TRUE
;
2168 struct prefix_list
*pprefix
;
2170 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2171 obstack_1grow (&collect_obstack
, '=');
2173 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2175 int len
= strlen (pprefix
->prefix
);
2179 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2182 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2185 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2186 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2189 if (just_machine_suffix
2190 && pprefix
->require_machine_suffix
== 2
2192 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2195 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2198 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2199 obstack_grow (&collect_obstack
, just_machine_suffix
,
2203 if (! pprefix
->require_machine_suffix
)
2206 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2209 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2213 obstack_1grow (&collect_obstack
, '\0');
2214 return obstack_finish (&collect_obstack
);
2217 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2221 putenv_from_prefixes (paths
, env_var
)
2222 struct path_prefix
*paths
;
2223 const char *env_var
;
2225 putenv (build_search_list (paths
, env_var
, 1));
2230 /* FIXME: the location independence code for VMS is hairier than this,
2231 and hasn't been written. */
2233 /* Split a filename into component directories. */
2236 split_directories (name
, ptr_num_dirs
)
2245 /* Count the number of directories. Special case MSDOS disk names as part
2246 of the initial directory. */
2248 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2249 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2254 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2256 while ((ch
= *p
++) != '\0')
2258 if (IS_DIR_SEPARATOR (ch
))
2261 while (IS_DIR_SEPARATOR (*p
))
2266 dirs
= (char **) xmalloc (sizeof (char *) * (num_dirs
+ 2));
2268 /* Now copy the directory parts. */
2271 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2272 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2274 dirs
[num_dirs
++] = save_string (p
, 3);
2277 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2280 while ((ch
= *p
++) != '\0')
2282 if (IS_DIR_SEPARATOR (ch
))
2284 while (IS_DIR_SEPARATOR (*p
))
2287 dirs
[num_dirs
++] = save_string (q
, p
- q
);
2293 dirs
[num_dirs
++] = save_string (q
, p
- 1 - q
);
2295 dirs
[num_dirs
] = NULL
;
2297 *ptr_num_dirs
= num_dirs
;
2302 /* Release storage held by split directories. */
2305 free_split_directories (dirs
)
2310 while (dirs
[i
] != NULL
)
2313 free ((char *) dirs
);
2316 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2317 to PREFIX starting with the directory portion of PROGNAME and a relative
2318 pathname of the difference between BIN_PREFIX and PREFIX.
2320 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2321 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2322 function will return /red/green/blue/../omega.
2324 If no relative prefix can be found, return NULL. */
2327 make_relative_prefix (progname
, bin_prefix
, prefix
)
2328 const char *progname
;
2329 const char *bin_prefix
;
2332 char **prog_dirs
, **bin_dirs
, **prefix_dirs
;
2333 int prog_num
, bin_num
, prefix_num
, std_loc_p
;
2336 prog_dirs
= split_directories (progname
, &prog_num
);
2337 bin_dirs
= split_directories (bin_prefix
, &bin_num
);
2339 /* If there is no full pathname, try to find the program by checking in each
2340 of the directories specified in the PATH environment variable. */
2345 GET_ENVIRONMENT (temp
, "PATH");
2348 char *startp
, *endp
, *nstore
;
2349 size_t prefixlen
= strlen (temp
) + 1;
2353 nstore
= (char *) alloca (prefixlen
+ strlen (progname
) + 1);
2355 startp
= endp
= temp
;
2358 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2363 nstore
[1] = DIR_SEPARATOR
;
2368 strncpy (nstore
, startp
, endp
- startp
);
2369 if (! IS_DIR_SEPARATOR (endp
[-1]))
2371 nstore
[endp
- startp
] = DIR_SEPARATOR
;
2372 nstore
[endp
- startp
+ 1] = 0;
2375 nstore
[endp
- startp
] = 0;
2377 strcat (nstore
, progname
);
2378 if (! access (nstore
, X_OK
)
2379 #ifdef HAVE_HOST_EXECUTABLE_SUFFIX
2380 || ! access (strcat (nstore
, HOST_EXECUTABLE_SUFFIX
), X_OK
)
2384 free_split_directories (prog_dirs
);
2386 prog_dirs
= split_directories (progname
, &prog_num
);
2392 endp
= startp
= endp
+ 1;
2400 /* Remove the program name from comparison of directory names. */
2403 /* Determine if the compiler is installed in the standard location, and if
2404 so, we don't need to specify relative directories. Also, if argv[0]
2405 doesn't contain any directory specifiers, there is not much we can do. */
2407 if (prog_num
== bin_num
)
2409 for (i
= 0; i
< bin_num
; i
++)
2411 if (strcmp (prog_dirs
[i
], bin_dirs
[i
]) != 0)
2415 if (prog_num
<= 0 || i
== bin_num
)
2418 free_split_directories (prog_dirs
);
2419 free_split_directories (bin_dirs
);
2420 prog_dirs
= bin_dirs
= (char **) 0;
2425 prefix_dirs
= split_directories (prefix
, &prefix_num
);
2427 /* Find how many directories are in common between bin_prefix & prefix. */
2428 n
= (prefix_num
< bin_num
) ? prefix_num
: bin_num
;
2429 for (common
= 0; common
< n
; common
++)
2431 if (strcmp (bin_dirs
[common
], prefix_dirs
[common
]) != 0)
2435 /* If there are no common directories, there can be no relative prefix. */
2438 free_split_directories (prog_dirs
);
2439 free_split_directories (bin_dirs
);
2440 free_split_directories (prefix_dirs
);
2444 /* Build up the pathnames in argv[0]. */
2445 for (i
= 0; i
< prog_num
; i
++)
2446 obstack_grow (&obstack
, prog_dirs
[i
], strlen (prog_dirs
[i
]));
2448 /* Now build up the ..'s. */
2449 for (i
= common
; i
< n
; i
++)
2451 obstack_grow (&obstack
, DIR_UP
, sizeof (DIR_UP
) - 1);
2452 obstack_1grow (&obstack
, DIR_SEPARATOR
);
2455 /* Put in directories to move over to prefix. */
2456 for (i
= common
; i
< prefix_num
; i
++)
2457 obstack_grow (&obstack
, prefix_dirs
[i
], strlen (prefix_dirs
[i
]));
2459 free_split_directories (prog_dirs
);
2460 free_split_directories (bin_dirs
);
2461 free_split_directories (prefix_dirs
);
2463 obstack_1grow (&obstack
, '\0');
2464 return obstack_finish (&obstack
);
2468 /* Check whether NAME can be accessed in MODE. This is like access,
2469 except that it never considers directories to be executable. */
2472 access_check (name
, mode
)
2480 if (stat (name
, &st
) < 0
2481 || S_ISDIR (st
.st_mode
))
2485 return access (name
, mode
);
2488 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2489 access to check permissions.
2490 Return 0 if not found, otherwise return its name, allocated with malloc. */
2493 find_a_file (pprefix
, name
, mode
)
2494 struct path_prefix
*pprefix
;
2499 const char *const file_suffix
=
2500 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2501 struct prefix_list
*pl
;
2502 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2504 #ifdef DEFAULT_ASSEMBLER
2505 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2506 return xstrdup (DEFAULT_ASSEMBLER
);
2509 #ifdef DEFAULT_LINKER
2510 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2511 return xstrdup (DEFAULT_LINKER
);
2515 len
+= strlen (machine_suffix
);
2517 temp
= xmalloc (len
);
2519 /* Determine the filename to execute (special case for absolute paths). */
2521 if (IS_ABSOLUTE_PATHNAME (name
))
2523 if (access (name
, mode
) == 0)
2525 strcpy (temp
, name
);
2530 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2534 /* Some systems have a suffix for executable files.
2535 So try appending that first. */
2536 if (file_suffix
[0] != 0)
2538 strcpy (temp
, pl
->prefix
);
2539 strcat (temp
, machine_suffix
);
2540 strcat (temp
, name
);
2541 strcat (temp
, file_suffix
);
2542 if (access_check (temp
, mode
) == 0)
2544 if (pl
->used_flag_ptr
!= 0)
2545 *pl
->used_flag_ptr
= 1;
2550 /* Now try just the name. */
2551 strcpy (temp
, pl
->prefix
);
2552 strcat (temp
, machine_suffix
);
2553 strcat (temp
, name
);
2554 if (access_check (temp
, mode
) == 0)
2556 if (pl
->used_flag_ptr
!= 0)
2557 *pl
->used_flag_ptr
= 1;
2562 /* Certain prefixes are tried with just the machine type,
2563 not the version. This is used for finding as, ld, etc. */
2564 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2566 /* Some systems have a suffix for executable files.
2567 So try appending that first. */
2568 if (file_suffix
[0] != 0)
2570 strcpy (temp
, pl
->prefix
);
2571 strcat (temp
, just_machine_suffix
);
2572 strcat (temp
, name
);
2573 strcat (temp
, file_suffix
);
2574 if (access_check (temp
, mode
) == 0)
2576 if (pl
->used_flag_ptr
!= 0)
2577 *pl
->used_flag_ptr
= 1;
2582 strcpy (temp
, pl
->prefix
);
2583 strcat (temp
, just_machine_suffix
);
2584 strcat (temp
, name
);
2585 if (access_check (temp
, mode
) == 0)
2587 if (pl
->used_flag_ptr
!= 0)
2588 *pl
->used_flag_ptr
= 1;
2593 /* Certain prefixes can't be used without the machine suffix
2594 when the machine or version is explicitly specified. */
2595 if (! pl
->require_machine_suffix
)
2597 /* Some systems have a suffix for executable files.
2598 So try appending that first. */
2599 if (file_suffix
[0] != 0)
2601 strcpy (temp
, pl
->prefix
);
2602 strcat (temp
, name
);
2603 strcat (temp
, file_suffix
);
2604 if (access_check (temp
, mode
) == 0)
2606 if (pl
->used_flag_ptr
!= 0)
2607 *pl
->used_flag_ptr
= 1;
2612 strcpy (temp
, pl
->prefix
);
2613 strcat (temp
, name
);
2614 if (access_check (temp
, mode
) == 0)
2616 if (pl
->used_flag_ptr
!= 0)
2617 *pl
->used_flag_ptr
= 1;
2627 /* Ranking of prefixes in the sort list. -B prefixes are put before
2630 enum path_prefix_priority
2632 PREFIX_PRIORITY_B_OPT
,
2633 PREFIX_PRIORITY_LAST
2636 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2637 order according to PRIORITY. Within each PRIORITY, new entries are
2640 If WARN is nonzero, we will warn if no file is found
2641 through this prefix. WARN should point to an int
2642 which will be set to 1 if this entry is used.
2644 COMPONENT is the value to be passed to update_path.
2646 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2647 the complete value of machine_suffix.
2648 2 means try both machine_suffix and just_machine_suffix. */
2651 add_prefix (pprefix
, prefix
, component
, priority
, require_machine_suffix
, warn
)
2652 struct path_prefix
*pprefix
;
2654 const char *component
;
2655 /* enum prefix_priority */ int priority
;
2656 int require_machine_suffix
;
2659 struct prefix_list
*pl
, **prev
;
2662 for (prev
= &pprefix
->plist
;
2663 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2664 prev
= &(*prev
)->next
)
2667 /* Keep track of the longest prefix */
2669 prefix
= update_path (prefix
, component
);
2670 len
= strlen (prefix
);
2671 if (len
> pprefix
->max_len
)
2672 pprefix
->max_len
= len
;
2674 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2675 pl
->prefix
= prefix
;
2676 pl
->require_machine_suffix
= require_machine_suffix
;
2677 pl
->used_flag_ptr
= warn
;
2678 pl
->priority
= priority
;
2682 /* Insert after PREV */
2687 /* Execute the command specified by the arguments on the current line of spec.
2688 When using pipes, this includes several piped-together commands
2689 with `|' between them.
2691 Return 0 if successful, -1 if failed. */
2697 int n_commands
; /* # of command. */
2701 const char *prog
; /* program name. */
2702 const char **argv
; /* vector of args. */
2703 int pid
; /* pid of process for this command. */
2706 struct command
*commands
; /* each command buffer with above info. */
2708 /* Count # of piped commands. */
2709 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2710 if (strcmp (argbuf
[i
], "|") == 0)
2713 /* Get storage for each command. */
2714 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2716 /* Split argbuf into its separate piped processes,
2717 and record info about each one.
2718 Also search for the programs that are to be run. */
2720 commands
[0].prog
= argbuf
[0]; /* first command. */
2721 commands
[0].argv
= &argbuf
[0];
2722 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2725 commands
[0].argv
[0] = string
;
2727 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2728 if (strcmp (argbuf
[i
], "|") == 0)
2729 { /* each command. */
2730 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2731 fatal ("-pipe not supported");
2733 argbuf
[i
] = 0; /* termination of command args. */
2734 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2735 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2736 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2738 commands
[n_commands
].argv
[0] = string
;
2742 argbuf
[argbuf_index
] = 0;
2744 /* If -v, print what we are about to do, and maybe query. */
2748 /* For help listings, put a blank line between sub-processes. */
2749 if (print_help_list
)
2750 fputc ('\n', stderr
);
2752 /* Print each piped command as a separate line. */
2753 for (i
= 0; i
< n_commands
; i
++)
2755 const char *const *j
;
2757 if (verbose_only_flag
)
2759 for (j
= commands
[i
].argv
; *j
; j
++)
2762 fprintf (stderr
, " \"");
2763 for (p
= *j
; *p
; ++p
)
2765 if (*p
== '"' || *p
== '\\' || *p
== '$')
2766 fputc ('\\', stderr
);
2769 fputc ('"', stderr
);
2773 for (j
= commands
[i
].argv
; *j
; j
++)
2774 fprintf (stderr
, " %s", *j
);
2776 /* Print a pipe symbol after all but the last command. */
2777 if (i
+ 1 != n_commands
)
2778 fprintf (stderr
, " |");
2779 fprintf (stderr
, "\n");
2782 if (verbose_only_flag
!= 0)
2785 notice ("\nGo ahead? (y or n) ");
2789 while (getchar () != '\n')
2792 if (i
!= 'y' && i
!= 'Y')
2797 /* Run each piped subprocess. */
2799 for (i
= 0; i
< n_commands
; i
++)
2801 char *errmsg_fmt
, *errmsg_arg
;
2802 const char *string
= commands
[i
].argv
[0];
2804 /* For some bizarre reason, the second argument of execvp() is
2805 char *const *, not const char *const *. */
2806 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2807 programname
, temp_filename
,
2808 &errmsg_fmt
, &errmsg_arg
,
2809 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2810 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2811 | (string
== commands
[i
].prog
2812 ? PEXECUTE_SEARCH
: 0)
2813 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2815 if (commands
[i
].pid
== -1)
2816 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2818 if (string
!= commands
[i
].prog
)
2819 free ((PTR
) string
);
2824 /* Wait for all the subprocesses to finish.
2825 We don't care what order they finish in;
2826 we know that N_COMMANDS waits will get them all.
2827 Ignore subprocesses that we don't know about,
2828 since they can be spawned by the process that exec'ed us. */
2832 #ifdef HAVE_GETRUSAGE
2834 double ut
= 0.0, st
= 0.0;
2837 for (i
= 0; i
< n_commands
;)
2843 pid
= pwait (commands
[i
].pid
, &status
, 0);
2847 #ifdef HAVE_GETRUSAGE
2850 /* getrusage returns the total resource usage of all children
2851 up to now. Copy the previous values into prus, get the
2852 current statistics, then take the difference. */
2855 getrusage (RUSAGE_CHILDREN
, &rus
);
2856 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2857 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2858 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2860 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2861 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2862 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2866 for (j
= 0; j
< n_commands
; j
++)
2867 if (commands
[j
].pid
== pid
)
2870 if (WIFSIGNALED (status
))
2873 /* SIGPIPE is a special case. It happens in -pipe mode
2874 when the compiler dies before the preprocessor is
2875 done, or the assembler dies before the compiler is
2876 done. There's generally been an error already, and
2877 this is just fallout. So don't generate another error
2878 unless we would otherwise have succeeded. */
2879 if (WTERMSIG (status
) == SIGPIPE
2880 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2885 Internal error: %s (program %s)\n\
2886 Please submit a full bug report.\n\
2887 See %s for instructions.",
2888 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2893 else if (WIFEXITED (status
)
2894 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2896 if (WEXITSTATUS (status
) > greatest_status
)
2897 greatest_status
= WEXITSTATUS (status
);
2900 #ifdef HAVE_GETRUSAGE
2901 if (report_times
&& ut
+ st
!= 0)
2902 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2911 /* Find all the switches given to us
2912 and make a vector describing them.
2913 The elements of the vector are strings, one per switch given.
2914 If a switch uses following arguments, then the `part1' field
2915 is the switch itself and the `args' field
2916 is a null-terminated vector containing the following arguments.
2917 The `live_cond' field is:
2919 1 if the switch is true in a conditional spec,
2920 -1 if false (overridden by a later switch)
2921 -2 if this switch should be ignored (used in %{<S})
2922 The `validated' field is nonzero if any spec has looked at this switch;
2923 if it remains zero at the end of the run, it must be meaningless. */
2926 #define SWITCH_FALSE -1
2927 #define SWITCH_IGNORE -2
2928 #define SWITCH_LIVE 1
2935 unsigned char validated
;
2936 unsigned char ordering
;
2939 static struct switchstr
*switches
;
2941 static int n_switches
;
2946 const char *language
;
2949 /* Also a vector of input files specified. */
2951 static struct infile
*infiles
;
2955 /* This counts the number of libraries added by lang_specific_driver, so that
2956 we can tell if there were any user supplied any files or libraries. */
2958 static int added_libraries
;
2960 /* And a vector of corresponding output files is made up later. */
2962 const char **outfiles
;
2964 /* Used to track if none of the -B paths are used. */
2967 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2968 static int *warn_std_ptr
= 0;
2970 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2972 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2973 is true if we should look for an executable suffix. DO_OBJ
2974 is true if we should look for an object suffix. */
2977 convert_filename (name
, do_exe
, do_obj
)
2979 int do_exe ATTRIBUTE_UNUSED
;
2980 int do_obj ATTRIBUTE_UNUSED
;
2982 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2990 len
= strlen (name
);
2992 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2993 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2994 if (do_obj
&& len
> 2
2995 && name
[len
- 2] == '.'
2996 && name
[len
- 1] == 'o')
2998 obstack_grow (&obstack
, name
, len
- 2);
2999 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3000 name
= obstack_finish (&obstack
);
3004 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3005 /* If there is no filetype, make it the executable suffix (which includes
3006 the "."). But don't get confused if we have just "-o". */
3007 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3010 for (i
= len
- 1; i
>= 0; i
--)
3011 if (IS_DIR_SEPARATOR (name
[i
]))
3014 for (i
++; i
< len
; i
++)
3018 obstack_grow (&obstack
, name
, len
);
3019 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3020 strlen (TARGET_EXECUTABLE_SUFFIX
));
3021 name
= obstack_finish (&obstack
);
3028 /* Display the command line switches accepted by gcc. */
3032 printf (_("Usage: %s [options] file...\n"), programname
);
3033 fputs (_("Options:\n"), stdout
);
3035 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3036 fputs (_(" --help Display this information\n"), stdout
);
3037 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3039 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3040 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3041 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3042 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3043 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3044 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3045 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3046 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3047 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3049 -print-multi-lib Display the mapping between command line options and\n\
3050 multiple library search directories\n"), stdout
);
3051 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3052 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3053 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3054 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3055 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3056 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3057 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3058 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3059 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3060 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3061 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3062 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3063 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3064 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3065 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3066 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3067 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3068 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3070 -x <language> Specify the language of the following input files\n\
3071 Permissable languages include: c c++ assembler none\n\
3072 'none' means revert to the default behavior of\n\
3073 guessing the language based on the file's extension\n\
3077 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3078 passed on to the various sub-processes invoked by %s. In order to pass\n\
3079 other options on to these processes the -W<letter> options must be used.\n\
3082 /* The rest of the options are displayed by invocations of the various
3087 add_preprocessor_option (option
, len
)
3091 n_preprocessor_options
++;
3093 if (! preprocessor_options
)
3094 preprocessor_options
3095 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
3097 preprocessor_options
3098 = (char **) xrealloc (preprocessor_options
,
3099 n_preprocessor_options
* sizeof (char *));
3101 preprocessor_options
[n_preprocessor_options
- 1] =
3102 save_string (option
, len
);
3106 add_assembler_option (option
, len
)
3110 n_assembler_options
++;
3112 if (! assembler_options
)
3114 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
3117 = (char **) xrealloc (assembler_options
,
3118 n_assembler_options
* sizeof (char *));
3120 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3124 add_linker_option (option
, len
)
3130 if (! linker_options
)
3132 = (char **) xmalloc (n_linker_options
* sizeof (char *));
3135 = (char **) xrealloc (linker_options
,
3136 n_linker_options
* sizeof (char *));
3138 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3141 /* Create the vector `switches' and its contents.
3142 Store its length in `n_switches'. */
3145 process_command (argc
, argv
)
3147 const char *const *argv
;
3152 const char *spec_lang
= 0;
3153 int last_language_n_infiles
;
3156 int lang_n_infiles
= 0;
3157 #ifdef MODIFY_TARGET_NAME
3158 int is_modify_target_name
;
3162 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3166 added_libraries
= 0;
3168 /* Figure compiler version from version string. */
3170 compiler_version
= temp1
= xstrdup (version_string
);
3172 for (; *temp1
; ++temp1
)
3181 /* If there is a -V or -b option (or both), process it now, before
3182 trying to interpret the rest of the command line. */
3183 if (argc
> 1 && argv
[1][0] == '-'
3184 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3186 const char *new_version
= DEFAULT_TARGET_VERSION
;
3187 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3188 const char *progname
= argv
[0];
3193 while (argc
> 1 && argv
[1][0] == '-'
3194 && (argv
[1][1] == 'V' || argv
[1][1] == 'b'))
3196 char opt
= argv
[1][1];
3198 if (argv
[1][2] != '\0')
3211 fatal ("`-%c' option must have argument", opt
);
3218 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3219 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3221 new_argv0
= xmemdup (progname
, baselen
,
3222 baselen
+ concat_length (new_version
, new_machine
,
3223 "-gcc-", NULL
) + 1);
3224 strcpy (new_argv0
+ baselen
, new_machine
);
3225 strcat (new_argv0
, "-gcc-");
3226 strcat (new_argv0
, new_version
);
3228 new_argv
= xmemdup (argv
, (argc
+ 1) * sizeof (argv
[0]),
3229 (argc
+ 1) * sizeof (argv
[0]));
3230 new_argv
[0] = new_argv0
;
3232 execvp (new_argv0
, new_argv
);
3233 fatal ("couldn't run `%s': %s", new_argv0
, xstrerror (errno
));
3236 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3237 see if we can create it from the pathname specified in argv[0]. */
3240 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3241 if (!gcc_exec_prefix
)
3243 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3244 standard_exec_prefix
);
3245 if (gcc_exec_prefix
)
3246 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3250 if (gcc_exec_prefix
)
3252 int len
= strlen (gcc_exec_prefix
);
3254 if (len
> (int) sizeof ("/lib/gcc-lib/") - 1
3255 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3257 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
3258 if (IS_DIR_SEPARATOR (*temp
)
3259 && strncmp (temp
+ 1, "lib", 3) == 0
3260 && IS_DIR_SEPARATOR (temp
[4])
3261 && strncmp (temp
+ 5, "gcc-lib", 7) == 0)
3262 len
-= sizeof ("/lib/gcc-lib/") - 1;
3265 set_std_prefix (gcc_exec_prefix
, len
);
3266 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC",
3267 PREFIX_PRIORITY_LAST
, 0, NULL
);
3268 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3269 PREFIX_PRIORITY_LAST
, 0, NULL
);
3272 /* COMPILER_PATH and LIBRARY_PATH have values
3273 that are lists of directory names with colons. */
3275 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3278 const char *startp
, *endp
;
3279 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3281 startp
= endp
= temp
;
3284 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3286 strncpy (nstore
, startp
, endp
- startp
);
3288 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3289 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3291 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3292 nstore
[endp
- startp
+ 1] = 0;
3295 nstore
[endp
- startp
] = 0;
3296 add_prefix (&exec_prefixes
, nstore
, 0,
3297 PREFIX_PRIORITY_LAST
, 0, NULL
);
3298 add_prefix (&include_prefixes
,
3299 concat (nstore
, "include", NULL
),
3300 0, PREFIX_PRIORITY_LAST
, 0, NULL
);
3303 endp
= startp
= endp
+ 1;
3310 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3311 if (temp
&& *cross_compile
== '0')
3313 const char *startp
, *endp
;
3314 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3316 startp
= endp
= temp
;
3319 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3321 strncpy (nstore
, startp
, endp
- startp
);
3323 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3324 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3326 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3327 nstore
[endp
- startp
+ 1] = 0;
3330 nstore
[endp
- startp
] = 0;
3331 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3332 PREFIX_PRIORITY_LAST
, 0, NULL
);
3335 endp
= startp
= endp
+ 1;
3342 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3343 GET_ENVIRONMENT (temp
, "LPATH");
3344 if (temp
&& *cross_compile
== '0')
3346 const char *startp
, *endp
;
3347 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3349 startp
= endp
= temp
;
3352 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3354 strncpy (nstore
, startp
, endp
- startp
);
3356 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3357 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3359 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3360 nstore
[endp
- startp
+ 1] = 0;
3363 nstore
[endp
- startp
] = 0;
3364 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3365 PREFIX_PRIORITY_LAST
, 0, NULL
);
3368 endp
= startp
= endp
+ 1;
3375 /* Convert new-style -- options to old-style. */
3376 translate_options (&argc
, &argv
);
3378 /* Do language-specific adjustment/addition of flags. */
3379 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3381 /* Scan argv twice. Here, the first time, just count how many switches
3382 there will be in their vector, and how many input files in theirs.
3383 Here we also parse the switches that cc itself uses (e.g. -v). */
3385 for (i
= 1; i
< argc
; i
++)
3387 if (! strcmp (argv
[i
], "-dumpspecs"))
3389 struct spec_list
*sl
;
3391 for (sl
= specs
; sl
; sl
= sl
->next
)
3392 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3393 if (link_command_spec
)
3394 printf ("*link_command:\n%s\n\n", link_command_spec
);
3397 else if (! strcmp (argv
[i
], "-dumpversion"))
3399 printf ("%s\n", spec_version
);
3402 else if (! strcmp (argv
[i
], "-dumpmachine"))
3404 printf ("%s\n", spec_machine
);
3407 else if (strcmp (argv
[i
], "-fversion") == 0)
3409 /* translate_options () has turned --version into -fversion. */
3410 printf (_("%s (GCC) %s\n"), programname
, version_string
);
3411 fputs (_("Copyright (C) 2002 Free Software Foundation, Inc.\n"),
3413 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
3414 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
3418 else if (strcmp (argv
[i
], "-fhelp") == 0)
3420 /* translate_options () has turned --help into -fhelp. */
3421 print_help_list
= 1;
3423 /* We will be passing a dummy file on to the sub-processes. */
3427 /* CPP driver cannot obtain switch from cc1_options. */
3429 add_preprocessor_option ("--help", 6);
3430 add_assembler_option ("--help", 6);
3431 add_linker_option ("--help", 6);
3433 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3435 /* translate_options() has turned --target-help into -ftarget-help. */
3436 target_help_flag
= 1;
3438 /* We will be passing a dummy file on to the sub-processes. */
3442 /* CPP driver cannot obtain switch from cc1_options. */
3444 add_preprocessor_option ("--target-help", 13);
3445 add_assembler_option ("--target-help", 13);
3446 add_linker_option ("--target-help", 13);
3448 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3450 pass_exit_codes
= 1;
3453 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3454 print_search_dirs
= 1;
3455 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3456 print_file_name
= "libgcc.a";
3457 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3458 print_file_name
= argv
[i
] + 17;
3459 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3460 print_prog_name
= argv
[i
] + 17;
3461 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3462 print_multi_lib
= 1;
3463 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3464 print_multi_directory
= 1;
3465 else if (! strncmp (argv
[i
], "-Wa,", 4))
3468 /* Pass the rest of this option to the assembler. */
3470 /* Split the argument at commas. */
3472 for (j
= 4; argv
[i
][j
]; j
++)
3473 if (argv
[i
][j
] == ',')
3475 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3479 /* Record the part after the last comma. */
3480 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3482 else if (! strncmp (argv
[i
], "-Wp,", 4))
3485 /* Pass the rest of this option to the preprocessor. */
3487 /* Split the argument at commas. */
3489 for (j
= 4; argv
[i
][j
]; j
++)
3490 if (argv
[i
][j
] == ',')
3492 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3496 /* Record the part after the last comma. */
3497 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3499 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3500 /* The +e options to the C++ front-end. */
3502 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3505 /* Split the argument at commas. */
3506 for (j
= 3; argv
[i
][j
]; j
++)
3507 n_infiles
+= (argv
[i
][j
] == ',');
3509 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3512 fatal ("argument to `-Xlinker' is missing");
3517 else if (strcmp (argv
[i
], "-l") == 0)
3520 fatal ("argument to `-l' is missing");
3525 else if (strncmp (argv
[i
], "-l", 2) == 0)
3527 else if (strcmp (argv
[i
], "-save-temps") == 0)
3529 save_temps_flag
= 1;
3532 else if (strcmp (argv
[i
], "-specs") == 0)
3534 struct user_specs
*user
= (struct user_specs
*)
3535 xmalloc (sizeof (struct user_specs
));
3537 fatal ("argument to `-specs' is missing");
3539 user
->next
= (struct user_specs
*) 0;
3540 user
->filename
= argv
[i
];
3541 if (user_specs_tail
)
3542 user_specs_tail
->next
= user
;
3544 user_specs_head
= user
;
3545 user_specs_tail
= user
;
3547 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3549 struct user_specs
*user
= (struct user_specs
*)
3550 xmalloc (sizeof (struct user_specs
));
3551 if (strlen (argv
[i
]) == 7)
3552 fatal ("argument to `-specs=' is missing");
3554 user
->next
= (struct user_specs
*) 0;
3555 user
->filename
= argv
[i
] + 7;
3556 if (user_specs_tail
)
3557 user_specs_tail
->next
= user
;
3559 user_specs_head
= user
;
3560 user_specs_tail
= user
;
3562 else if (strcmp (argv
[i
], "-time") == 0)
3564 else if (strcmp (argv
[i
], "-###") == 0)
3566 /* This is similar to -v except that there is no execution
3567 of the commands and the echoed arguments are quoted. It
3568 is intended for use in shell scripts to capture the
3569 driver-generated command line. */
3570 verbose_only_flag
++;
3573 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3575 const char *p
= &argv
[i
][1];
3582 fatal ("`-%c' must come at the start of the command line", c
);
3590 if (p
[1] == 0 && i
+ 1 == argc
)
3591 fatal ("argument to `-B' is missing");
3597 len
= strlen (value
);
3599 /* Catch the case where the user has forgotten to append a
3600 directory separator to the path. Note, they may be using
3601 -B to add an executable name prefix, eg "i386-elf-", in
3602 order to distinguish between multiple installations of
3603 GCC in the same directory. Hence we must check to see
3604 if appending a directory separator actually makes a
3605 valid directory name. */
3606 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3607 && is_directory (value
, "", 0))
3609 char *tmp
= xmalloc (len
+ 2);
3610 strcpy (tmp
, value
);
3611 tmp
[len
] = DIR_SEPARATOR
;
3616 /* As a kludge, if the arg is "[foo/]stageN/", just
3617 add "[foo/]include" to the include prefix. */
3620 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3621 && strncmp (value
+ len
- 7, "stage", 5) == 0
3622 && ISDIGIT (value
[len
- 2])
3623 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3626 add_prefix (&include_prefixes
, "include", NULL
,
3627 PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3630 char * string
= xmalloc (len
+ 1);
3632 strncpy (string
, value
, len
- 7);
3633 strcpy (string
+ len
- 7, "include");
3634 add_prefix (&include_prefixes
, string
, NULL
,
3635 PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3639 add_prefix (&exec_prefixes
, value
, NULL
,
3640 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3641 add_prefix (&startfile_prefixes
, value
, NULL
,
3642 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3643 add_prefix (&include_prefixes
, concat (value
, "include", NULL
),
3644 NULL
, PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3649 case 'v': /* Print our subcommands and print versions. */
3651 /* If they do anything other than exactly `-v', don't set
3652 verbose_flag; rather, continue on to give the error. */
3670 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3675 /* Forward scan, just in case -S or -c is specified
3682 if (argv
[j
][0] == '-')
3684 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3690 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3691 j
+= skip
- (argv
[j
][2] != 0);
3692 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3699 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3701 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
3703 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
3710 #ifdef MODIFY_TARGET_NAME
3711 is_modify_target_name
= 0;
3713 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3714 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3717 = (char *) xmalloc (strlen (modify_target
[j
].str
)
3718 + strlen (spec_machine
));
3721 int made_addition
= 0;
3723 is_modify_target_name
= 1;
3724 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3726 if (modify_target
[j
].add_del
== DELETE
3727 && (! strncmp (q
, modify_target
[j
].str
,
3728 strlen (modify_target
[j
].str
))))
3729 p
+= strlen (modify_target
[j
].str
);
3730 else if (modify_target
[j
].add_del
== ADD
3731 && ! made_addition
&& *p
== '-')
3733 for (r
= modify_target
[j
].str
; *r
!= 0; )
3741 spec_machine
= new_name
;
3744 if (is_modify_target_name
)
3750 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3751 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3752 else if (WORD_SWITCH_TAKES_ARG (p
))
3753 i
+= WORD_SWITCH_TAKES_ARG (p
);
3763 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3764 fatal ("cannot specify -o with -c or -S and multiple compilations");
3766 /* Set up the search paths before we go looking for config files. */
3768 /* These come before the md prefixes so that we will find gcc's subcommands
3769 (such as cpp) rather than those of the host system. */
3770 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3771 as well as trying the machine and the version. */
3773 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3774 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3775 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3776 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3777 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3778 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3781 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3782 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3783 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3784 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3786 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3787 dir_separator_str
, NULL
);
3789 /* If tooldir is relative, base it on exec_prefixes. A relative
3790 tooldir lets us move the installed tree as a unit.
3792 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3793 directories, so that we can search both the user specified directory
3794 and the standard place. */
3796 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix
))
3798 if (gcc_exec_prefix
)
3800 char *gcc_exec_tooldir_prefix
3801 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3802 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3804 add_prefix (&exec_prefixes
,
3805 concat (gcc_exec_tooldir_prefix
, "bin",
3806 dir_separator_str
, NULL
),
3807 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
3808 add_prefix (&startfile_prefixes
,
3809 concat (gcc_exec_tooldir_prefix
, "lib",
3810 dir_separator_str
, NULL
),
3811 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
3814 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3815 dir_separator_str
, spec_version
,
3816 dir_separator_str
, tooldir_prefix
, NULL
);
3819 add_prefix (&exec_prefixes
,
3820 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3821 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
3822 add_prefix (&startfile_prefixes
,
3823 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3824 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
3826 /* More prefixes are enabled in main, after we read the specs file
3827 and determine whether this is cross-compilation or not. */
3829 /* Then create the space for the vectors and scan again. */
3831 switches
= ((struct switchstr
*)
3832 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3833 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3836 last_language_n_infiles
= -1;
3838 /* This, time, copy the text of each switch and store a pointer
3839 to the copy in the vector of switches.
3840 Store all the infiles in their vector. */
3842 for (i
= 1; i
< argc
; i
++)
3844 /* Just skip the switches that were handled by the preceding loop. */
3845 #ifdef MODIFY_TARGET_NAME
3846 is_modify_target_name
= 0;
3848 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
3849 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3850 is_modify_target_name
= 1;
3852 if (is_modify_target_name
)
3856 if (! strncmp (argv
[i
], "-Wa,", 4))
3858 else if (! strncmp (argv
[i
], "-Wp,", 4))
3860 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3862 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3864 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3866 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3868 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3870 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3872 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3874 else if (! strcmp (argv
[i
], "-ftarget-help"))
3876 else if (! strcmp (argv
[i
], "-fhelp"))
3878 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3880 /* Compensate for the +e options to the C++ front-end;
3881 they're there simply for cfront call-compatibility. We do
3882 some magic in default_compilers to pass them down properly.
3883 Note we deliberately start at the `+' here, to avoid passing
3884 -e0 or -e1 down into the linker. */
3885 switches
[n_switches
].part1
= &argv
[i
][0];
3886 switches
[n_switches
].args
= 0;
3887 switches
[n_switches
].live_cond
= SWITCH_OK
;
3888 switches
[n_switches
].validated
= 0;
3891 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3894 /* Split the argument at commas. */
3896 for (j
= 4; argv
[i
][j
]; j
++)
3897 if (argv
[i
][j
] == ',')
3899 infiles
[n_infiles
].language
= "*";
3900 infiles
[n_infiles
++].name
3901 = save_string (argv
[i
] + prev
, j
- prev
);
3904 /* Record the part after the last comma. */
3905 infiles
[n_infiles
].language
= "*";
3906 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3908 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3910 infiles
[n_infiles
].language
= "*";
3911 infiles
[n_infiles
++].name
= argv
[++i
];
3913 else if (strcmp (argv
[i
], "-l") == 0)
3914 { /* POSIX allows separation of -l and the lib arg;
3915 canonicalize by concatenating -l with its arg */
3916 infiles
[n_infiles
].language
= "*";
3917 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3919 else if (strncmp (argv
[i
], "-l", 2) == 0)
3921 infiles
[n_infiles
].language
= "*";
3922 infiles
[n_infiles
++].name
= argv
[i
];
3924 else if (strcmp (argv
[i
], "-specs") == 0)
3926 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3928 else if (strcmp (argv
[i
], "-time") == 0)
3930 else if ((save_temps_flag
|| report_times
)
3931 && strcmp (argv
[i
], "-pipe") == 0)
3933 /* -save-temps overrides -pipe, so that temp files are produced */
3934 if (save_temps_flag
)
3935 error ("warning: -pipe ignored because -save-temps specified");
3936 /* -time overrides -pipe because we can't get correct stats when
3937 multiple children are running at once. */
3938 else if (report_times
)
3939 error ("warning: -pipe ignored because -time specified");
3941 else if (strcmp (argv
[i
], "-###") == 0)
3943 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3945 const char *p
= &argv
[i
][1];
3950 if (p
[1] == 0 && i
+ 1 == argc
)
3951 fatal ("argument to `-x' is missing");
3953 spec_lang
= argv
[++i
];
3956 if (! strcmp (spec_lang
, "none"))
3957 /* Suppress the warning if -xnone comes after the last input
3958 file, because alternate command interfaces like g++ might
3959 find it useful to place -xnone after each input file. */
3962 last_language_n_infiles
= n_infiles
;
3965 switches
[n_switches
].part1
= p
;
3966 /* Deal with option arguments in separate argv elements. */
3967 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3968 || WORD_SWITCH_TAKES_ARG (p
))
3971 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3975 /* Count only the option arguments in separate argv elements. */
3976 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3978 if (i
+ n_args
>= argc
)
3979 fatal ("argument to `-%s' is missing", p
);
3980 switches
[n_switches
].args
3981 = (const char **) xmalloc ((n_args
+ 1) * sizeof(const char *));
3983 switches
[n_switches
].args
[j
++] = argv
[++i
];
3984 /* Null-terminate the vector. */
3985 switches
[n_switches
].args
[j
] = 0;
3987 else if (strchr (switches_need_spaces
, c
))
3989 /* On some systems, ld cannot handle some options without
3990 a space. So split the option from its argument. */
3991 char *part1
= (char *) xmalloc (2);
3995 switches
[n_switches
].part1
= part1
;
3996 switches
[n_switches
].args
3997 = (const char **) xmalloc (2 * sizeof (const char *));
3998 switches
[n_switches
].args
[0] = xstrdup (p
+1);
3999 switches
[n_switches
].args
[1] = 0;
4002 switches
[n_switches
].args
= 0;
4004 switches
[n_switches
].live_cond
= SWITCH_OK
;
4005 switches
[n_switches
].validated
= 0;
4006 switches
[n_switches
].ordering
= 0;
4007 /* These are always valid, since gcc.c itself understands it. */
4008 if (!strcmp (p
, "save-temps")
4009 || !strcmp (p
, "static-libgcc")
4010 || !strcmp (p
, "shared-libgcc"))
4011 switches
[n_switches
].validated
= 1;
4014 char ch
= switches
[n_switches
].part1
[0];
4016 switches
[n_switches
].validated
= 1;
4022 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4023 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4026 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4028 perror_with_name (argv
[i
]);
4033 infiles
[n_infiles
].language
= spec_lang
;
4034 infiles
[n_infiles
++].name
= argv
[i
];
4039 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4040 error ("warning: `-x %s' after last input file has no effect", spec_lang
);
4042 /* Ensure we only invoke each subprocess once. */
4043 if (target_help_flag
|| print_help_list
)
4047 /* Create a dummy input file, so that we can pass --target-help on to
4048 the various sub-processes. */
4049 infiles
[0].language
= "c";
4050 infiles
[0].name
= "help-dummy";
4052 if (target_help_flag
)
4054 switches
[n_switches
].part1
= "--target-help";
4055 switches
[n_switches
].args
= 0;
4056 switches
[n_switches
].live_cond
= SWITCH_OK
;
4057 switches
[n_switches
].validated
= 0;
4062 if (print_help_list
)
4064 switches
[n_switches
].part1
= "--help";
4065 switches
[n_switches
].args
= 0;
4066 switches
[n_switches
].live_cond
= SWITCH_OK
;
4067 switches
[n_switches
].validated
= 0;
4073 switches
[n_switches
].part1
= 0;
4074 infiles
[n_infiles
].name
= 0;
4077 /* Store switches not filtered out by %{<S} in spec in COLLECT_GCC_OPTIONS
4078 and place that in the environment. */
4081 set_collect_gcc_options ()
4086 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4088 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4089 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4092 for (i
= 0; (int) i
< n_switches
; i
++)
4094 const char *const *args
;
4097 obstack_grow (&collect_obstack
, " ", 1);
4101 /* Ignore elided switches. */
4102 if (switches
[i
].live_cond
== SWITCH_IGNORE
)
4105 obstack_grow (&collect_obstack
, "'-", 2);
4106 q
= switches
[i
].part1
;
4107 while ((p
= strchr (q
, '\'')))
4109 obstack_grow (&collect_obstack
, q
, p
- q
);
4110 obstack_grow (&collect_obstack
, "'\\''", 4);
4113 obstack_grow (&collect_obstack
, q
, strlen (q
));
4114 obstack_grow (&collect_obstack
, "'", 1);
4116 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4118 obstack_grow (&collect_obstack
, " '", 2);
4120 while ((p
= strchr (q
, '\'')))
4122 obstack_grow (&collect_obstack
, q
, p
- q
);
4123 obstack_grow (&collect_obstack
, "'\\''", 4);
4126 obstack_grow (&collect_obstack
, q
, strlen (q
));
4127 obstack_grow (&collect_obstack
, "'", 1);
4130 obstack_grow (&collect_obstack
, "\0", 1);
4131 putenv (obstack_finish (&collect_obstack
));
4134 /* Process a spec string, accumulating and running commands. */
4136 /* These variables describe the input file name.
4137 input_file_number is the index on outfiles of this file,
4138 so that the output file name can be stored for later use by %o.
4139 input_basename is the start of the part of the input file
4140 sans all directory names, and basename_length is the number
4141 of characters starting there excluding the suffix .c or whatever. */
4143 const char *input_filename
;
4144 static int input_file_number
;
4145 size_t input_filename_length
;
4146 static int basename_length
;
4147 static int suffixed_basename_length
;
4148 static const char *input_basename
;
4149 static const char *input_suffix
;
4150 static struct stat input_stat
;
4151 static int input_stat_set
;
4153 /* The compiler used to process the current input file. */
4154 static struct compiler
*input_file_compiler
;
4156 /* These are variables used within do_spec and do_spec_1. */
4158 /* Nonzero if an arg has been started and not yet terminated
4159 (with space, tab or newline). */
4160 static int arg_going
;
4162 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4163 is a temporary file name. */
4164 static int delete_this_arg
;
4166 /* Nonzero means %w has been seen; the next arg to be terminated
4167 is the output file name of this compilation. */
4168 static int this_is_output_file
;
4170 /* Nonzero means %s has been seen; the next arg to be terminated
4171 is the name of a library file and we should try the standard
4172 search dirs for it. */
4173 static int this_is_library_file
;
4175 /* Nonzero means that the input of this command is coming from a pipe. */
4176 static int input_from_pipe
;
4178 /* Nonnull means substitute this for any suffix when outputting a switches
4180 static const char *suffix_subst
;
4182 /* Process the spec SPEC and run the commands specified therein.
4183 Returns 0 if the spec is successfully processed; -1 if failed. */
4191 value
= do_spec_2 (spec
);
4193 /* Force out any unfinished command.
4194 If -pipe, this forces out the last command if it ended in `|'. */
4197 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4200 set_collect_gcc_options ();
4202 if (argbuf_index
> 0)
4215 delete_this_arg
= 0;
4216 this_is_output_file
= 0;
4217 this_is_library_file
= 0;
4218 input_from_pipe
= 0;
4219 suffix_subst
= NULL
;
4221 return do_spec_1 (spec
, 0, NULL
);
4224 /* Process the sub-spec SPEC as a portion of a larger spec.
4225 This is like processing a whole spec except that we do
4226 not initialize at the beginning and we do not supply a
4227 newline by default at the end.
4228 INSWITCH nonzero means don't process %-sequences in SPEC;
4229 in this case, % is treated as an ordinary character.
4230 This is used while substituting switches.
4231 INSWITCH nonzero also causes SPC not to terminate an argument.
4233 Value is zero unless a line was finished
4234 and the command on that line reported an error. */
4237 do_spec_1 (spec
, inswitch
, soft_matched_part
)
4240 const char *soft_matched_part
;
4242 const char *p
= spec
;
4249 /* If substituting a switch, treat all chars like letters.
4250 Otherwise, NL, SPC, TAB and % are special. */
4251 switch (inswitch
? 'a' : c
)
4254 /* End of line: finish any pending argument,
4255 then run the pending command if one has been started. */
4258 obstack_1grow (&obstack
, 0);
4259 string
= obstack_finish (&obstack
);
4260 if (this_is_library_file
)
4261 string
= find_file (string
);
4262 store_arg (string
, delete_this_arg
, this_is_output_file
);
4263 if (this_is_output_file
)
4264 outfiles
[input_file_number
] = string
;
4268 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4270 for (i
= 0; i
< n_switches
; i
++)
4271 if (!strcmp (switches
[i
].part1
, "pipe"))
4274 /* A `|' before the newline means use a pipe here,
4275 but only if -pipe was specified.
4276 Otherwise, execute now and don't pass the `|' as an arg. */
4279 input_from_pipe
= 1;
4280 switches
[i
].validated
= 1;
4287 set_collect_gcc_options ();
4289 if (argbuf_index
> 0)
4295 /* Reinitialize for a new command, and for a new argument. */
4298 delete_this_arg
= 0;
4299 this_is_output_file
= 0;
4300 this_is_library_file
= 0;
4301 input_from_pipe
= 0;
4305 /* End any pending argument. */
4308 obstack_1grow (&obstack
, 0);
4309 string
= obstack_finish (&obstack
);
4310 if (this_is_library_file
)
4311 string
= find_file (string
);
4312 store_arg (string
, delete_this_arg
, this_is_output_file
);
4313 if (this_is_output_file
)
4314 outfiles
[input_file_number
] = string
;
4318 obstack_1grow (&obstack
, c
);
4324 /* Space or tab ends an argument if one is pending. */
4327 obstack_1grow (&obstack
, 0);
4328 string
= obstack_finish (&obstack
);
4329 if (this_is_library_file
)
4330 string
= find_file (string
);
4331 store_arg (string
, delete_this_arg
, this_is_output_file
);
4332 if (this_is_output_file
)
4333 outfiles
[input_file_number
] = string
;
4335 /* Reinitialize for a new argument. */
4337 delete_this_arg
= 0;
4338 this_is_output_file
= 0;
4339 this_is_library_file
= 0;
4346 fatal ("invalid specification! Bug in cc");
4349 obstack_grow (&obstack
, input_basename
, basename_length
);
4354 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4359 delete_this_arg
= 2;
4362 /* Dump out the directories specified with LIBRARY_PATH,
4363 followed by the absolute directories
4364 that we search for startfiles. */
4367 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4368 size_t bufsize
= 100;
4369 char *buffer
= (char *) xmalloc (bufsize
);
4372 for (; pl
; pl
= pl
->next
)
4374 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4375 /* Used on systems which record the specified -L dirs
4376 and use them to search for dynamic linking. */
4377 /* Relative directories always come from -B,
4378 and it is better not to use them for searching
4379 at run time. In particular, stage1 loses. */
4380 if (!IS_ABSOLUTE_PATHNAME (pl
->prefix
))
4383 /* Try subdirectory if there is one. */
4384 if (multilib_dir
!= NULL
)
4388 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4390 bufsize
= (strlen (pl
->prefix
)
4391 + strlen (machine_suffix
)) * 2 + 1;
4392 buffer
= (char *) xrealloc (buffer
, bufsize
);
4393 strcpy (buffer
, pl
->prefix
);
4394 strcat (buffer
, machine_suffix
);
4395 if (is_directory (buffer
, multilib_dir
, 1))
4397 do_spec_1 ("-L", 0, NULL
);
4398 #ifdef SPACE_AFTER_L_OPTION
4399 do_spec_1 (" ", 0, NULL
);
4401 do_spec_1 (buffer
, 1, NULL
);
4402 do_spec_1 (multilib_dir
, 1, NULL
);
4403 /* Make this a separate argument. */
4404 do_spec_1 (" ", 0, NULL
);
4407 if (!pl
->require_machine_suffix
)
4409 if (is_directory (pl
->prefix
, multilib_dir
, 1))
4411 do_spec_1 ("-L", 0, NULL
);
4412 #ifdef SPACE_AFTER_L_OPTION
4413 do_spec_1 (" ", 0, NULL
);
4415 do_spec_1 (pl
->prefix
, 1, NULL
);
4416 do_spec_1 (multilib_dir
, 1, NULL
);
4417 /* Make this a separate argument. */
4418 do_spec_1 (" ", 0, NULL
);
4424 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4426 do_spec_1 ("-L", 0, NULL
);
4427 #ifdef SPACE_AFTER_L_OPTION
4428 do_spec_1 (" ", 0, NULL
);
4430 do_spec_1 (pl
->prefix
, 1, NULL
);
4431 /* Remove slash from machine_suffix. */
4432 if (strlen (machine_suffix
) >= bufsize
)
4433 bufsize
= strlen (machine_suffix
) * 2 + 1;
4434 buffer
= (char *) xrealloc (buffer
, bufsize
);
4435 strcpy (buffer
, machine_suffix
);
4436 idx
= strlen (buffer
);
4437 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4438 buffer
[idx
- 1] = 0;
4439 do_spec_1 (buffer
, 1, NULL
);
4440 /* Make this a separate argument. */
4441 do_spec_1 (" ", 0, NULL
);
4444 if (!pl
->require_machine_suffix
)
4446 if (is_directory (pl
->prefix
, "", 1))
4448 do_spec_1 ("-L", 0, NULL
);
4449 #ifdef SPACE_AFTER_L_OPTION
4450 do_spec_1 (" ", 0, NULL
);
4452 /* Remove slash from pl->prefix. */
4453 if (strlen (pl
->prefix
) >= bufsize
)
4454 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4455 buffer
= (char *) xrealloc (buffer
, bufsize
);
4456 strcpy (buffer
, pl
->prefix
);
4457 idx
= strlen (buffer
);
4458 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4459 buffer
[idx
- 1] = 0;
4460 do_spec_1 (buffer
, 1, NULL
);
4461 /* Make this a separate argument. */
4462 do_spec_1 (" ", 0, NULL
);
4471 /* %efoo means report an error with `foo' as error message
4472 and don't execute any more commands for this file. */
4476 while (*p
!= 0 && *p
!= '\n')
4478 buf
= (char *) alloca (p
- q
+ 1);
4479 strncpy (buf
, q
, p
- q
);
4486 /* %nfoo means report an notice with `foo' on stderr. */
4490 while (*p
!= 0 && *p
!= '\n')
4492 buf
= (char *) alloca (p
- q
+ 1);
4493 strncpy (buf
, q
, p
- q
);
4495 notice ("%s\n", buf
);
4505 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4506 and it is not a directory, and it is writable, use it.
4507 Otherwise, fall through and treat this like any other
4510 if ((!save_temps_flag
)
4511 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4512 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4514 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4515 strlen (HOST_BIT_BUCKET
));
4516 delete_this_arg
= 0;
4525 struct temp_name
*t
;
4527 const char *suffix
= p
;
4528 char *saved_suffix
= NULL
;
4530 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4532 suffix_length
= p
- suffix
;
4533 if (p
[0] == '%' && p
[1] == 'O')
4536 /* We don't support extra suffix characters after %O. */
4537 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4539 if (suffix_length
== 0)
4540 suffix
= TARGET_OBJECT_SUFFIX
;
4544 = (char *) xmalloc (suffix_length
4545 + strlen (TARGET_OBJECT_SUFFIX
));
4546 strncpy (saved_suffix
, suffix
, suffix_length
);
4547 strcpy (saved_suffix
+ suffix_length
,
4548 TARGET_OBJECT_SUFFIX
);
4550 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4553 /* If the input_filename has the same suffix specified
4554 for the %g, %u, or %U, and -save-temps is specified,
4555 we could end up using that file as an intermediate
4556 thus clobbering the user's source file (.e.g.,
4557 gcc -save-temps foo.s would clobber foo.s with the
4558 output of cpp0). So check for this condition and
4559 generate a temp file as the intermediate. */
4561 if (save_temps_flag
)
4563 temp_filename_length
= basename_length
+ suffix_length
;
4564 temp_filename
= alloca (temp_filename_length
+ 1);
4565 strncpy ((char *) temp_filename
, input_basename
, basename_length
);
4566 strncpy ((char *) temp_filename
+ basename_length
, suffix
,
4568 *((char *) temp_filename
+ temp_filename_length
) = '\0';
4569 if (strcmp (temp_filename
, input_filename
) != 0)
4571 struct stat st_temp
;
4573 /* Note, set_input() resets input_stat_set to 0. */
4574 if (input_stat_set
== 0)
4576 input_stat_set
= stat (input_filename
, &input_stat
);
4577 if (input_stat_set
>= 0)
4581 /* If we have the stat for the input_filename
4582 and we can do the stat for the temp_filename
4583 then the they could still refer to the same
4584 file if st_dev/st_ino's are the same. */
4586 if (input_stat_set
!= 1
4587 || stat (temp_filename
, &st_temp
) < 0
4588 || input_stat
.st_dev
!= st_temp
.st_dev
4589 || input_stat
.st_ino
!= st_temp
.st_ino
)
4591 temp_filename
= save_string (temp_filename
,
4592 temp_filename_length
+ 1);
4593 obstack_grow (&obstack
, temp_filename
,
4594 temp_filename_length
);
4601 /* See if we already have an association of %g/%u/%U and
4603 for (t
= temp_names
; t
; t
= t
->next
)
4604 if (t
->length
== suffix_length
4605 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4606 && t
->unique
== (c
!= 'g'))
4609 /* Make a new association if needed. %u and %j
4611 if (t
== 0 || c
== 'u' || c
== 'j')
4615 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
4616 t
->next
= temp_names
;
4619 t
->length
= suffix_length
;
4622 t
->suffix
= saved_suffix
;
4623 saved_suffix
= NULL
;
4626 t
->suffix
= save_string (suffix
, suffix_length
);
4627 t
->unique
= (c
!= 'g');
4628 temp_filename
= make_temp_file (t
->suffix
);
4629 temp_filename_length
= strlen (temp_filename
);
4630 t
->filename
= temp_filename
;
4631 t
->filename_length
= temp_filename_length
;
4635 free (saved_suffix
);
4637 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4638 delete_this_arg
= 1;
4644 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4650 struct prefix_list
*pl
= include_prefixes
.plist
;
4652 if (gcc_exec_prefix
)
4654 do_spec_1 ("-iprefix", 1, NULL
);
4655 /* Make this a separate argument. */
4656 do_spec_1 (" ", 0, NULL
);
4657 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4658 do_spec_1 (" ", 0, NULL
);
4661 for (; pl
; pl
= pl
->next
)
4663 do_spec_1 ("-isystem", 1, NULL
);
4664 /* Make this a separate argument. */
4665 do_spec_1 (" ", 0, NULL
);
4666 do_spec_1 (pl
->prefix
, 1, NULL
);
4667 do_spec_1 (" ", 0, NULL
);
4674 int max
= n_infiles
;
4675 max
+= lang_specific_extra_outfiles
;
4677 for (i
= 0; i
< max
; i
++)
4679 store_arg (outfiles
[i
], 0, 0);
4684 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4689 this_is_library_file
= 1;
4693 this_is_output_file
= 1;
4698 int cur_index
= argbuf_index
;
4699 /* Handle the {...} following the %W. */
4702 p
= handle_braces (p
+ 1);
4705 /* If any args were output, mark the last one for deletion
4707 if (argbuf_index
!= cur_index
)
4708 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4712 /* %x{OPTION} records OPTION for %X to output. */
4718 /* Skip past the option value and make a copy. */
4723 string
= save_string (p1
+ 1, p
- p1
- 2);
4725 /* See if we already recorded this option. */
4726 for (i
= 0; i
< n_linker_options
; i
++)
4727 if (! strcmp (string
, linker_options
[i
]))
4733 /* This option is new; add it. */
4734 add_linker_option (string
, strlen (string
));
4738 /* Dump out the options accumulated previously using %x. */
4740 for (i
= 0; i
< n_linker_options
; i
++)
4742 do_spec_1 (linker_options
[i
], 1, NULL
);
4743 /* Make each accumulated option a separate argument. */
4744 do_spec_1 (" ", 0, NULL
);
4748 /* Dump out the options accumulated previously using -Wa,. */
4750 for (i
= 0; i
< n_assembler_options
; i
++)
4752 do_spec_1 (assembler_options
[i
], 1, NULL
);
4753 /* Make each accumulated option a separate argument. */
4754 do_spec_1 (" ", 0, NULL
);
4758 /* Dump out the options accumulated previously using -Wp,. */
4760 for (i
= 0; i
< n_preprocessor_options
; i
++)
4762 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4763 /* Make each accumulated option a separate argument. */
4764 do_spec_1 (" ", 0, NULL
);
4768 /* Here are digits and numbers that just process
4769 a certain constant string as a spec. */
4772 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4778 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
4784 value
= do_spec_1 (asm_spec
, 0, NULL
);
4790 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
4797 const char *const spec
4798 = (input_file_compiler
->cpp_spec
4799 ? input_file_compiler
->cpp_spec
4801 value
= do_spec_1 (spec
, 0, NULL
);
4808 value
= do_spec_1 (endfile_spec
, 0, NULL
);
4814 value
= do_spec_1 (link_spec
, 0, NULL
);
4820 value
= do_spec_1 (lib_spec
, 0, NULL
);
4826 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
4832 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
4838 len
= strlen (multilib_dir
);
4839 obstack_blank (&obstack
, len
+ 1);
4840 p
= obstack_next_free (&obstack
) - (len
+ 1);
4843 for (q
= multilib_dir
; *q
; ++q
, ++p
)
4844 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
4850 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
4854 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4858 if (! strncmp (y
, "-D", 2))
4859 /* Copy the whole option. */
4860 while (*y
&& *y
!= ' ' && *y
!= '\t')
4862 else if (*y
== ' ' || *y
== '\t')
4863 /* Copy whitespace to the result. */
4865 /* Don't copy other options. */
4872 value
= do_spec_1 (buf
, 0, NULL
);
4880 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
4884 /* Copy all of CPP_PREDEFINES into BUF,
4885 but force them all into the reserved name space if they
4886 aren't already there. The reserved name space is all
4887 identifiers beginning with two underscores or with one
4888 underscore and a capital letter. We do the forcing by
4889 adding up to two underscores to the beginning and end
4890 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4895 if (! strncmp (y
, "-D", 2))
4904 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4906 /* Stick __ at front of macro name. */
4910 /* Arrange to stick __ at the end as well. */
4914 /* Copy the macro name. */
4915 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4928 /* Copy the value given, if any. */
4929 while (*y
&& *y
!= ' ' && *y
!= '\t')
4932 else if (*y
== ' ' || *y
== '\t')
4933 /* Copy whitespace to the result. */
4935 /* Don't copy -A options */
4941 /* Copy all of CPP_PREDEFINES into BUF,
4942 but put __ after every -D. */
4946 if (! strncmp (y
, "-D", 2))
4952 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4954 /* Stick -D__ at front of macro name. */
4961 /* Copy the macro name. */
4962 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4965 /* Copy the value given, if any. */
4966 while (*y
&& *y
!= ' ' && *y
!= '\t')
4971 /* Do not copy this macro - we have just done it before */
4972 while (*y
&& *y
!= ' ' && *y
!= '\t')
4976 else if (*y
== ' ' || *y
== '\t')
4977 /* Copy whitespace to the result. */
4979 /* Don't copy -A options. */
4985 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4989 if (! strncmp (y
, "-A", 2))
4990 /* Copy the whole option. */
4991 while (*y
&& *y
!= ' ' && *y
!= '\t')
4993 else if (*y
== ' ' || *y
== '\t')
4994 /* Copy whitespace to the result. */
4996 /* Don't copy other options. */
5003 value
= do_spec_1 (buf
, 0, NULL
);
5010 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5015 /* Here we define characters other than letters and digits. */
5018 p
= handle_braces (p
);
5024 obstack_1grow (&obstack
, '%');
5031 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5033 suffix_subst
= save_string (p
- 1, len
+ 1);
5039 if (soft_matched_part
)
5041 do_spec_1 (soft_matched_part
, 1, NULL
);
5042 do_spec_1 (" ", 0, NULL
);
5045 /* Catch the case where a spec string contains something like
5046 '%{foo:%*}'. ie there is no * in the pattern on the left
5047 hand side of the :. */
5048 error ("spec failure: '%%*' has not been initialized by pattern match");
5051 /* Process a string found as the value of a spec given by name.
5052 This feature allows individual machine descriptions
5053 to add and use their own specs.
5054 %[...] modifies -D options the way %P does;
5055 %(...) uses the spec unmodified. */
5057 error ("warning: use of obsolete %%[ operator in specs");
5060 const char *name
= p
;
5061 struct spec_list
*sl
;
5064 /* The string after the S/P is the name of a spec that is to be
5066 while (*p
&& *p
!= ')' && *p
!= ']')
5069 /* See if it's in the list. */
5070 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5071 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5073 name
= *(sl
->ptr_spec
);
5075 notice ("Processing spec %c%s%c, which is '%s'\n",
5076 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5085 value
= do_spec_1 (name
, 0, NULL
);
5091 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5093 const char *y
= name
;
5096 /* Copy all of NAME into BUF, but put __ after
5097 every -D and at the end of each arg. */
5100 if (! strncmp (y
, "-D", 2))
5111 && (*y
== ' ' || *y
== '\t' || *y
== '='
5112 || *y
== '}' || *y
== 0))
5125 value
= do_spec_1 (buf
, 0, NULL
);
5131 /* Discard the closing paren or bracket. */
5139 int c1
= *p
++; /* Select first or second version number. */
5140 const char *v
= compiler_version
;
5142 static const char zeroc
= '0';
5144 /* The format of the version string is
5145 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
5147 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
5148 while (! ISDIGIT (*v
))
5150 if (v
> compiler_version
&& v
[-1] != '-')
5153 /* If desired, advance to second version number. */
5156 /* Set V after the first period. */
5157 while (ISDIGIT (*v
))
5164 /* If desired, advance to third version number.
5165 But don't complain if it's not present */
5168 /* Set V after the second period. */
5169 while (ISDIGIT (*v
))
5171 if ((*v
!= 0) && (*v
!= ' ') && (*v
!= '.') && (*v
!= '-'))
5177 /* Set Q at the next period or at the end. */
5179 while (ISDIGIT (*q
))
5181 if (*q
!= 0 && q
> v
&& *q
!= ' ' && *q
!= '.' && *q
!= '-')
5185 /* Put that part into the command. */
5186 obstack_grow (&obstack
, v
, q
- v
);
5188 /* Default to "0" */
5189 obstack_grow (&obstack
, &zeroc
, 1);
5195 if (input_from_pipe
)
5196 do_spec_1 ("-", 0, NULL
);
5200 error ("spec failure: unrecognized spec option '%c'", c
);
5206 /* Backslash: treat next character as ordinary. */
5211 /* Ordinary character: put it into the current argument. */
5212 obstack_1grow (&obstack
, c
);
5216 /* End of string. */
5220 /* Return 0 if we call do_spec_1 and that returns -1. */
5226 const char *filter
, *body
= NULL
, *endbody
= NULL
;
5228 int true_once
= 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
5231 int include_blanks
= 1;
5232 int elide_switch
= 0;
5237 /* A '^' after the open-brace means to not give blanks before args. */
5244 /* A `|' after the open-brace means,
5245 if the test fails, output a single minus sign rather than nothing.
5246 This is used in %{|!pipe:...}. */
5253 /* A `<' after the open-brace means that the switch should be
5254 removed from the command-line. */
5260 negate
= suffix
= 0;
5263 /* A `!' after the open-brace negates the condition:
5264 succeed if the specified switch is not present. */
5268 /* A `.' after the open-brace means test against the current suffix. */
5277 if (elide_switch
&& (negate
|| pipe_p
|| suffix
))
5279 /* It doesn't make sense to mix elision with other flags. We
5280 could fatal() here, but the standard seems to be to abort. */
5286 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
5289 if (*p
== '|' && (pipe_p
|| ordered
))
5294 if (*p
!= '}' && *p
!= '&')
5310 fatal ("mismatched braces in specs");
5316 body
= p
, endbody
= p
+ 1;
5321 int found
= (input_suffix
!= 0
5322 && (long) strlen (input_suffix
) == (long) (p
- filter
)
5323 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
5329 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL
) < 0)
5332 else if (p
[-1] == '*' && (p
[0] == '}' || p
[0] == '&'))
5334 /* Substitute all matching switches as separate args. */
5337 for (i
= 0; i
< n_switches
; i
++)
5338 if (!strncmp (switches
[i
].part1
, filter
, p
- 1 - filter
)
5339 && check_live_switch (i
, p
- 1 - filter
))
5343 switches
[i
].live_cond
= SWITCH_IGNORE
;
5344 switches
[i
].validated
= 1;
5347 ordered
= 1, switches
[i
].ordering
= 1;
5352 /* Test for presence of the specified switch. */
5356 /* If name specified ends in *, as in {x*:...},
5357 check for %* and handle that case. */
5358 if (p
[-1] == '*' && !negate
)
5361 const char *r
= body
;
5363 /* First see whether we have %*. */
5367 if (*r
== '%' && r
[1] == '*')
5371 /* If we do, handle that case. */
5374 /* Substitute all matching switches as separate args.
5375 But do this by substituting for %*
5376 in the text that follows the colon. */
5378 unsigned hard_match_len
= p
- filter
- 1;
5379 char *string
= save_string (body
, endbody
- body
- 1);
5381 for (i
= 0; i
< n_switches
; i
++)
5382 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5383 && check_live_switch (i
, -1))
5385 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
5386 /* Pass any arguments this switch has. */
5387 give_switch (i
, 1, 1);
5388 suffix_subst
= NULL
;
5391 /* We didn't match. Try again. */
5398 /* If name specified ends in *, as in {x*:...},
5399 check for presence of any switch name starting with x. */
5402 for (i
= 0; i
< n_switches
; i
++)
5404 unsigned hard_match_len
= p
- filter
- 1;
5406 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5407 && check_live_switch (i
, hard_match_len
))
5414 /* Otherwise, check for presence of exact name specified. */
5417 for (i
= 0; i
< n_switches
; i
++)
5419 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5420 && switches
[i
].part1
[p
- filter
] == 0
5421 && check_live_switch (i
, -1))
5429 /* If it is as desired (present for %{s...}, absent for %{!s...})
5430 then substitute either the switch or the specified
5431 conditional text. */
5432 if (present
!= negate
)
5436 switches
[i
].live_cond
= SWITCH_IGNORE
;
5437 switches
[i
].validated
= 1;
5439 else if (ordered
|| *p
== '&')
5440 ordered
= 1, switches
[i
].ordering
= 1;
5442 give_switch (i
, 0, include_blanks
);
5444 /* Even if many alternatives are matched, only output once. */
5449 /* Here if a %{|...} conditional fails: output a minus sign,
5450 which means "standard output" or "standard input". */
5451 do_spec_1 ("-", 0, NULL
);
5456 /* We didn't match; try again. */
5463 goto next_ampersand
;
5469 /* Doing this set of switches later preserves their command-line
5470 ordering. This is needed for e.g. -U, -D and -A. */
5471 for (i
= 0; i
< n_switches
; i
++)
5472 if (switches
[i
].ordering
== 1)
5474 switches
[i
].ordering
= 0;
5475 give_switch (i
, 0, include_blanks
);
5478 /* Process the spec just once, regardless of match count. */
5481 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
5489 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5490 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5491 spec, or -1 if either exact match or %* is used.
5493 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5494 whose value does not begin with "no-" is obsoleted by the same value
5495 with the "no-", similarly for a switch with the "no-" prefix. */
5498 check_live_switch (switchnum
, prefix_length
)
5502 const char *name
= switches
[switchnum
].part1
;
5505 /* In the common case of {<at-most-one-letter>*}, a negating
5506 switch would always match, so ignore that case. We will just
5507 send the conflicting switches to the compiler phase. */
5508 if (prefix_length
>= 0 && prefix_length
<= 1)
5511 /* If we already processed this switch and determined if it was
5512 live or not, return our past determination. */
5513 if (switches
[switchnum
].live_cond
!= 0)
5514 return switches
[switchnum
].live_cond
> 0;
5516 /* Now search for duplicate in a manner that depends on the name. */
5520 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5521 if (switches
[i
].part1
[0] == 'O')
5523 switches
[switchnum
].validated
= 1;
5524 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5529 case 'W': case 'f': case 'm':
5530 if (! strncmp (name
+ 1, "no-", 3))
5532 /* We have Xno-YYY, search for XYYY. */
5533 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5534 if (switches
[i
].part1
[0] == name
[0]
5535 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5537 switches
[switchnum
].validated
= 1;
5538 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5544 /* We have XYYY, search for Xno-YYY. */
5545 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5546 if (switches
[i
].part1
[0] == name
[0]
5547 && switches
[i
].part1
[1] == 'n'
5548 && switches
[i
].part1
[2] == 'o'
5549 && switches
[i
].part1
[3] == '-'
5550 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5552 switches
[switchnum
].validated
= 1;
5553 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5560 /* Otherwise the switch is live. */
5561 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5565 /* Pass a switch to the current accumulating command
5566 in the same form that we received it.
5567 SWITCHNUM identifies the switch; it is an index into
5568 the vector of switches gcc received, which is `switches'.
5569 This cannot fail since it never finishes a command line.
5571 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5573 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5577 give_switch (switchnum
, omit_first_word
, include_blanks
)
5579 int omit_first_word
;
5582 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5585 if (!omit_first_word
)
5587 do_spec_1 ("-", 0, NULL
);
5588 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5591 if (switches
[switchnum
].args
!= 0)
5594 for (p
= switches
[switchnum
].args
; *p
; p
++)
5596 const char *arg
= *p
;
5599 do_spec_1 (" ", 0, NULL
);
5602 unsigned length
= strlen (arg
);
5605 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5606 if (arg
[length
] == '.')
5608 ((char *)arg
)[length
] = 0;
5612 do_spec_1 (arg
, 1, NULL
);
5614 ((char *)arg
)[length
] = '.';
5615 do_spec_1 (suffix_subst
, 1, NULL
);
5618 do_spec_1 (arg
, 1, NULL
);
5622 do_spec_1 (" ", 0, NULL
);
5623 switches
[switchnum
].validated
= 1;
5626 /* Search for a file named NAME trying various prefixes including the
5627 user's -B prefix and some standard ones.
5628 Return the absolute file name found. If nothing is found, return NAME. */
5636 /* Try multilib_dir if it is defined. */
5637 if (multilib_dir
!= NULL
)
5639 const char *const try = ACONCAT ((multilib_dir
, dir_separator_str
, name
, NULL
));
5641 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
5643 /* If we don't find it in the multi library dir, then fall
5644 through and look for it in the normal places. */
5645 if (newname
!= NULL
)
5649 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
5650 return newname
? newname
: name
;
5653 /* Determine whether a directory exists. If LINKER, return 0 for
5654 certain fixed names not needed by the linker. If not LINKER, it is
5655 only important to return 0 if the host machine has a small ARG_MAX
5659 is_directory (path1
, path2
, linker
)
5664 int len1
= strlen (path1
);
5665 int len2
= strlen (path2
);
5666 char *path
= (char *) alloca (3 + len1
+ len2
);
5670 #ifndef SMALL_ARG_MAX
5675 /* Construct the path from the two parts. Ensure the string ends with "/.".
5676 The resulting path will be a directory even if the given path is a
5678 memcpy (path
, path1
, len1
);
5679 memcpy (path
+ len1
, path2
, len2
);
5680 cp
= path
+ len1
+ len2
;
5681 if (!IS_DIR_SEPARATOR (cp
[-1]))
5682 *cp
++ = DIR_SEPARATOR
;
5686 /* Exclude directories that the linker is known to search. */
5689 && strcmp (path
, concat (dir_separator_str
, "lib",
5690 dir_separator_str
, ".", NULL
)) == 0)
5692 && strcmp (path
, concat (dir_separator_str
, "usr",
5693 dir_separator_str
, "lib",
5694 dir_separator_str
, ".", NULL
)) == 0)))
5697 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5700 /* Set up the various global variables to indicate that we're processing
5701 the input file named FILENAME. */
5704 set_input (filename
)
5705 const char *filename
;
5709 input_filename
= filename
;
5710 input_filename_length
= strlen (input_filename
);
5712 input_basename
= input_filename
;
5713 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5714 /* Skip drive name so 'x:foo' is handled properly. */
5715 if (input_basename
[1] == ':')
5716 input_basename
+= 2;
5718 for (p
= input_basename
; *p
; p
++)
5719 if (IS_DIR_SEPARATOR (*p
))
5720 input_basename
= p
+ 1;
5722 /* Find a suffix starting with the last period,
5723 and set basename_length to exclude that suffix. */
5724 basename_length
= strlen (input_basename
);
5725 suffixed_basename_length
= basename_length
;
5726 p
= input_basename
+ basename_length
;
5727 while (p
!= input_basename
&& *p
!= '.')
5729 if (*p
== '.' && p
!= input_basename
)
5731 basename_length
= p
- input_basename
;
5732 input_suffix
= p
+ 1;
5737 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
5738 we will need to do a stat on the input_filename. The
5739 INPUT_STAT_SET signals that the stat is needed. */
5743 /* On fatal signals, delete all the temporary files. */
5746 fatal_error (signum
)
5749 signal (signum
, SIG_DFL
);
5750 delete_failure_queue ();
5751 delete_temp_files ();
5752 /* Get the same signal again, this time not handled,
5753 so its normal effect occurs. */
5754 kill (getpid (), signum
);
5757 extern int main
PARAMS ((int, const char *const *));
5762 const char *const *argv
;
5766 int linker_was_run
= 0;
5767 char *explicit_link_files
;
5770 struct user_specs
*uptr
;
5772 p
= argv
[0] + strlen (argv
[0]);
5773 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5777 xmalloc_set_program_name (programname
);
5779 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5780 /* Perform host dependent initialization when needed. */
5781 GCC_DRIVER_HOST_INITIALIZATION
;
5784 gcc_init_libintl ();
5786 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
5787 signal (SIGINT
, fatal_error
);
5789 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
5790 signal (SIGHUP
, fatal_error
);
5792 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
5793 signal (SIGTERM
, fatal_error
);
5795 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
5796 signal (SIGPIPE
, fatal_error
);
5799 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5800 receive the signal. A different setting is inheritable */
5801 signal (SIGCHLD
, SIG_DFL
);
5805 argbuf
= (const char **) xmalloc (argbuf_length
* sizeof (const char *));
5807 obstack_init (&obstack
);
5809 /* Build multilib_select, et. al from the separate lines that make up each
5810 multilib selection. */
5812 const char *const *q
= multilib_raw
;
5815 obstack_init (&multilib_obstack
);
5816 while ((p
= *q
++) != (char *) 0)
5817 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5819 obstack_1grow (&multilib_obstack
, 0);
5820 multilib_select
= obstack_finish (&multilib_obstack
);
5822 q
= multilib_matches_raw
;
5823 while ((p
= *q
++) != (char *) 0)
5824 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5826 obstack_1grow (&multilib_obstack
, 0);
5827 multilib_matches
= obstack_finish (&multilib_obstack
);
5829 q
= multilib_exclusions_raw
;
5830 while ((p
= *q
++) != (char *) 0)
5831 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5833 obstack_1grow (&multilib_obstack
, 0);
5834 multilib_exclusions
= obstack_finish (&multilib_obstack
);
5837 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
5840 obstack_1grow (&multilib_obstack
, ' ');
5841 obstack_grow (&multilib_obstack
,
5842 multilib_defaults_raw
[i
],
5843 strlen (multilib_defaults_raw
[i
]));
5847 obstack_1grow (&multilib_obstack
, 0);
5848 multilib_defaults
= obstack_finish (&multilib_obstack
);
5851 /* Set up to remember the pathname of gcc and any options
5852 needed for collect. We use argv[0] instead of programname because
5853 we need the complete pathname. */
5854 obstack_init (&collect_obstack
);
5855 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5856 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
5857 putenv (obstack_finish (&collect_obstack
));
5859 #ifdef INIT_ENVIRONMENT
5860 /* Set up any other necessary machine specific environment variables. */
5861 putenv (INIT_ENVIRONMENT
);
5864 /* Make a table of what switches there are (switches, n_switches).
5865 Make a table of specified input files (infiles, n_infiles).
5866 Decode switches that are handled locally. */
5868 process_command (argc
, argv
);
5870 /* Initialize the vector of specs to just the default.
5871 This means one element containing 0s, as a terminator. */
5873 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
5874 memcpy ((char *) compilers
, (char *) default_compilers
,
5875 sizeof default_compilers
);
5876 n_compilers
= n_default_compilers
;
5878 /* Read specs from a file if there is one. */
5880 machine_suffix
= concat (spec_machine
, dir_separator_str
,
5881 spec_version
, dir_separator_str
, NULL
);
5882 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
5884 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
5885 /* Read the specs file unless it is a default one. */
5886 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
5887 read_specs (specs_file
, TRUE
);
5891 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5892 for any override of as, ld and libraries. */
5893 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
5894 + strlen (just_machine_suffix
)
5895 + sizeof ("specs"));
5897 strcpy (specs_file
, standard_exec_prefix
);
5898 strcat (specs_file
, just_machine_suffix
);
5899 strcat (specs_file
, "specs");
5900 if (access (specs_file
, R_OK
) == 0)
5901 read_specs (specs_file
, TRUE
);
5903 /* If not cross-compiling, look for startfiles in the standard places.
5904 Similarly, don't add the standard prefixes if startfile handling
5905 will be under control of startfile_prefix_spec. */
5906 if (*cross_compile
== '0' && *startfile_prefix_spec
== 0)
5908 if (*md_exec_prefix
)
5910 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
5911 PREFIX_PRIORITY_LAST
, 0, NULL
);
5912 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
5913 PREFIX_PRIORITY_LAST
, 0, NULL
);
5916 if (*md_startfile_prefix
)
5917 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
5918 PREFIX_PRIORITY_LAST
, 0, NULL
);
5920 if (*md_startfile_prefix_1
)
5921 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
5922 PREFIX_PRIORITY_LAST
, 0, NULL
);
5924 /* If standard_startfile_prefix is relative, base it on
5925 standard_exec_prefix. This lets us move the installed tree
5926 as a unit. If GCC_EXEC_PREFIX is defined, base
5927 standard_startfile_prefix on that as well. */
5928 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
))
5929 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
5930 PREFIX_PRIORITY_LAST
, 0, NULL
);
5933 if (gcc_exec_prefix
)
5934 add_prefix (&startfile_prefixes
,
5935 concat (gcc_exec_prefix
, machine_suffix
,
5936 standard_startfile_prefix
, NULL
),
5937 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
5938 add_prefix (&startfile_prefixes
,
5939 concat (standard_exec_prefix
,
5941 standard_startfile_prefix
, NULL
),
5942 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
5945 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
5946 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5947 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
5948 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5949 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5950 add_prefix (&startfile_prefixes
, "./", NULL
,
5951 PREFIX_PRIORITY_LAST
, 1, NULL
);
5956 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
)
5958 add_prefix (&startfile_prefixes
,
5959 concat (gcc_exec_prefix
, machine_suffix
,
5960 standard_startfile_prefix
, NULL
),
5961 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5964 if (*startfile_prefix_spec
!= 0
5965 && do_spec_2 (startfile_prefix_spec
) == 0
5966 && do_spec_1 (" ", 0, NULL
) == 0)
5969 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
5970 add_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
5971 PREFIX_PRIORITY_LAST
, 0, NULL
);
5974 /* Process any user specified specs in the order given on the command
5976 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
5978 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
5979 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
5982 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5983 if (gcc_exec_prefix
)
5984 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
5985 spec_version
, dir_separator_str
, NULL
);
5987 /* Now we have the specs.
5988 Set the `valid' bits for switches that match anything in any spec. */
5990 validate_all_switches ();
5992 /* Now that we have the switches and the specs, set
5993 the subdirectory based on the options. */
5994 set_multilib_dir ();
5996 /* Warn about any switches that no pass was interested in. */
5998 for (i
= 0; (int) i
< n_switches
; i
++)
5999 if (! switches
[i
].validated
)
6000 error ("unrecognized option `-%s'", switches
[i
].part1
);
6002 /* Obey some of the options. */
6004 if (print_search_dirs
)
6006 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
6007 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
6008 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
6012 if (print_file_name
)
6014 printf ("%s\n", find_file (print_file_name
));
6018 if (print_prog_name
)
6020 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
6021 printf ("%s\n", (newname
? newname
: print_prog_name
));
6025 if (print_multi_lib
)
6027 print_multilib_info ();
6031 if (print_multi_directory
)
6033 if (multilib_dir
== NULL
)
6036 printf ("%s\n", multilib_dir
);
6040 if (target_help_flag
)
6042 /* Print if any target specific options. */
6044 /* We do not exit here. Instead we have created a fake input file
6045 called 'target-dummy' which needs to be compiled, and we pass this
6046 on to the various sub-processes, along with the --target-help
6050 if (print_help_list
)
6056 printf (_("\nFor bug reporting instructions, please see:\n"));
6057 printf ("%s.\n", GCCBUGURL
);
6062 /* We do not exit here. Instead we have created a fake input file
6063 called 'help-dummy' which needs to be compiled, and we pass this
6064 on the various sub-processes, along with the --help switch. */
6072 notice ("Configured with: %s\n", configuration_arguments
);
6074 #ifdef THREAD_MODEL_SPEC
6075 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6076 but there's no point in doing all this processing just to get
6077 thread_model back. */
6078 obstack_init (&obstack
);
6079 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6080 obstack_1grow (&obstack
, '\0');
6081 thrmod
= obstack_finish (&obstack
);
6083 thrmod
= thread_model
;
6086 notice ("Thread model: %s\n", thrmod
);
6088 /* compiler_version is truncated at the first space when initialized
6089 from version string, so truncate version_string at the first space
6090 before comparing. */
6091 for (n
= 0; version_string
[n
]; n
++)
6092 if (version_string
[n
] == ' ')
6095 if (! strncmp (version_string
, compiler_version
, n
)
6096 && compiler_version
[n
] == 0)
6097 notice ("gcc version %s\n", version_string
);
6099 notice ("gcc driver version %s executing gcc version %s\n",
6100 version_string
, compiler_version
);
6106 if (n_infiles
== added_libraries
)
6107 fatal ("no input files");
6109 /* Make a place to record the compiler output file names
6110 that correspond to the input files. */
6113 i
+= lang_specific_extra_outfiles
;
6114 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
6116 /* Record which files were specified explicitly as link input. */
6118 explicit_link_files
= xcalloc (1, n_infiles
);
6120 for (i
= 0; (int) i
< n_infiles
; i
++)
6122 int this_file_error
= 0;
6124 /* Tell do_spec what to substitute for %i. */
6126 input_file_number
= i
;
6127 set_input (infiles
[i
].name
);
6129 /* Use the same thing in %o, unless cp->spec says otherwise. */
6131 outfiles
[i
] = input_filename
;
6133 /* Figure out which compiler from the file's suffix. */
6136 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
6137 infiles
[i
].language
);
6139 if (input_file_compiler
)
6141 /* Ok, we found an applicable compiler. Run its spec. */
6143 if (input_file_compiler
->spec
[0] == '#')
6145 error ("%s: %s compiler not installed on this system",
6146 input_filename
, &input_file_compiler
->spec
[1]);
6147 this_file_error
= 1;
6151 value
= do_spec (input_file_compiler
->spec
);
6153 this_file_error
= 1;
6157 /* If this file's name does not contain a recognized suffix,
6158 record it as explicit linker input. */
6161 explicit_link_files
[i
] = 1;
6163 /* Clear the delete-on-failure queue, deleting the files in it
6164 if this compilation failed. */
6166 if (this_file_error
)
6168 delete_failure_queue ();
6171 /* If this compilation succeeded, don't delete those files later. */
6172 clear_failure_queue ();
6175 /* Reset the output file name to the first input file name, for use
6176 with %b in LINK_SPEC on a target that prefers not to emit a.out
6179 set_input (infiles
[0].name
);
6181 if (error_count
== 0)
6183 /* Make sure INPUT_FILE_NUMBER points to first available open
6185 input_file_number
= n_infiles
;
6186 if (lang_specific_pre_link ())
6190 /* Run ld to link all the compiler output files. */
6192 if (error_count
== 0)
6194 int tmp
= execution_count
;
6196 /* We'll use ld if we can't find collect2. */
6197 if (! strcmp (linker_name_spec
, "collect2"))
6199 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
6201 linker_name_spec
= "ld";
6203 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6205 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6206 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6208 value
= do_spec (link_command_spec
);
6211 linker_was_run
= (tmp
!= execution_count
);
6214 /* If options said don't run linker,
6215 complain about input files to be given to the linker. */
6217 if (! linker_was_run
&& error_count
== 0)
6218 for (i
= 0; (int) i
< n_infiles
; i
++)
6219 if (explicit_link_files
[i
])
6220 error ("%s: linker input file unused because linking not done",
6223 /* Delete some or all of the temporary files we made. */
6226 delete_failure_queue ();
6227 delete_temp_files ();
6229 if (print_help_list
)
6231 printf (("\nFor bug reporting instructions, please see:\n"));
6232 printf ("%s\n", GCCBUGURL
);
6235 return (signal_count
!= 0 ? 2
6236 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6240 /* Find the proper compilation spec for the file name NAME,
6241 whose length is LENGTH. LANGUAGE is the specified language,
6242 or 0 if this file is to be passed to the linker. */
6244 static struct compiler
*
6245 lookup_compiler (name
, length
, language
)
6248 const char *language
;
6250 struct compiler
*cp
;
6252 /* If this was specified by the user to be a linker input, indicate that. */
6253 if (language
!= 0 && language
[0] == '*')
6256 /* Otherwise, look for the language, if one is spec'd. */
6259 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6260 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6263 error ("language %s not recognized", language
);
6267 /* Look for a suffix. */
6268 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6270 if (/* The suffix `-' matches only the file name `-'. */
6271 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6272 || (strlen (cp
->suffix
) < length
6273 /* See if the suffix matches the end of NAME. */
6274 && !strcmp (cp
->suffix
,
6275 name
+ length
- strlen (cp
->suffix
))
6280 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6281 /* look again, but case-insensitively this time. */
6283 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6285 if (/* The suffix `-' matches only the file name `-'. */
6286 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6287 || (strlen (cp
->suffix
) < length
6288 /* See if the suffix matches the end of NAME. */
6289 && ((!strcmp (cp
->suffix
,
6290 name
+ length
- strlen (cp
->suffix
))
6291 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6292 && !strcasecmp (cp
->suffix
,
6293 name
+ length
- strlen (cp
->suffix
)))
6299 if (cp
>= compilers
)
6301 if (cp
->spec
[0] != '@')
6302 /* A non-alias entry: return it. */
6305 /* An alias entry maps a suffix to a language.
6306 Search for the language; pass 0 for NAME and LENGTH
6307 to avoid infinite recursion if language not found. */
6308 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6314 save_string (s
, len
)
6318 char *result
= xmalloc (len
+ 1);
6320 memcpy (result
, s
, len
);
6326 pfatal_with_name (name
)
6329 perror_with_name (name
);
6330 delete_temp_files ();
6335 perror_with_name (name
)
6338 error ("%s: %s", name
, xstrerror (errno
));
6342 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
6343 const char *errmsg_fmt
;
6344 const char *errmsg_arg
;
6348 int save_errno
= errno
;
6350 /* Space for trailing '\0' is in %s. */
6351 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6352 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6358 pfatal_with_name (errmsg_fmt
);
6361 /* Output an error message and exit */
6366 fatal ("internal gcc abort");
6369 /* Output an error message and exit */
6372 fatal
VPARAMS ((const char *msgid
, ...))
6374 VA_OPEN (ap
, msgid
);
6375 VA_FIXEDARG (ap
, const char *, msgid
);
6377 fprintf (stderr
, "%s: ", programname
);
6378 vfprintf (stderr
, _(msgid
), ap
);
6380 fprintf (stderr
, "\n");
6381 delete_temp_files ();
6386 error
VPARAMS ((const char *msgid
, ...))
6388 VA_OPEN (ap
, msgid
);
6389 VA_FIXEDARG (ap
, const char *, msgid
);
6391 fprintf (stderr
, "%s: ", programname
);
6392 vfprintf (stderr
, _(msgid
), ap
);
6395 fprintf (stderr
, "\n");
6399 notice
VPARAMS ((const char *msgid
, ...))
6401 VA_OPEN (ap
, msgid
);
6402 VA_FIXEDARG (ap
, const char *, msgid
);
6404 vfprintf (stderr
, _(msgid
), ap
);
6409 validate_all_switches ()
6411 struct compiler
*comp
;
6414 struct spec_list
*spec
;
6416 for (comp
= compilers
; comp
->spec
; comp
++)
6420 if (c
== '%' && (*p
== '{' || (*p
== 'W' && *++p
== '{')))
6421 /* We have a switch spec. */
6422 validate_switches (p
+ 1);
6425 /* Look through the linked list of specs read from the specs file. */
6426 for (spec
= specs
; spec
; spec
= spec
->next
)
6428 p
= *(spec
->ptr_spec
);
6430 if (c
== '%' && (*p
== '{' || (*p
== 'W' && *++p
== '{')))
6431 /* We have a switch spec. */
6432 validate_switches (p
+ 1);
6435 p
= link_command_spec
;
6437 if (c
== '%' && (*p
== '{' || (*p
== 'W' && *++p
== '{')))
6438 /* We have a switch spec. */
6439 validate_switches (p
+ 1);
6442 /* Look at the switch-name that comes after START
6443 and mark as valid all supplied switches that match it. */
6446 validate_switches (start
)
6449 const char *p
= start
;
6466 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
6471 else if (p
[-1] == '*')
6473 /* Mark all matching switches as valid. */
6474 for (i
= 0; i
< n_switches
; i
++)
6475 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
- 1))
6476 switches
[i
].validated
= 1;
6480 /* Mark an exact matching switch as valid. */
6481 for (i
= 0; i
< n_switches
; i
++)
6483 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
6484 && switches
[i
].part1
[p
- filter
] == 0)
6485 switches
[i
].validated
= 1;
6489 if (*p
++ == '|' || p
[-1] == '&')
6493 /* Check whether a particular argument was used. The first time we
6494 canonicalize the switches to keep only the ones we care about. */
6504 const char *replace
;
6509 static struct mswitchstr
*mswitches
;
6510 static int n_mswitches
;
6515 struct mswitchstr
*matches
;
6519 /* Break multilib_matches into the component strings of string
6520 and replacement string. */
6521 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6526 (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
6528 q
= multilib_matches
;
6538 matches
[i
].len
= q
- matches
[i
].str
;
6540 matches
[i
].replace
= ++q
;
6541 while (*q
!= ';' && *q
!= '\0')
6547 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6553 /* Now build a list of the replacement string for switches that we care
6554 about. Make sure we allocate at least one entry. This prevents
6555 xmalloc from calling fatal, and prevents us from re-executing this
6558 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
6559 * (n_switches
? n_switches
: 1));
6560 for (i
= 0; i
< n_switches
; i
++)
6562 int xlen
= strlen (switches
[i
].part1
);
6563 for (j
= 0; j
< cnt
; j
++)
6564 if (xlen
== matches
[j
].len
6565 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6567 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6568 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6569 mswitches
[n_mswitches
].replace
= (char *) 0;
6570 mswitches
[n_mswitches
].rep_len
= 0;
6577 for (i
= 0; i
< n_mswitches
; i
++)
6578 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
6585 default_arg (p
, len
)
6589 const char *start
, *end
;
6591 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
6593 while (*start
== ' ' || *start
== '\t')
6599 for (end
= start
+ 1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
6602 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
6612 /* Work out the subdirectory to use based on the options. The format of
6613 multilib_select is a list of elements. Each element is a subdirectory
6614 name followed by a list of options followed by a semicolon. The format
6615 of multilib_exclusions is the same, but without the preceding
6616 directory. First gcc will check the exclusions, if none of the options
6617 beginning with an exclamation point are present, and all of the other
6618 options are present, then we will ignore this completely. Passing
6619 that, gcc will consider each multilib_select in turn using the same
6620 rules for matching the options. If a match is found, that subdirectory
6627 unsigned int this_path_len
;
6628 const char *this_path
, *this_arg
;
6632 p
= multilib_exclusions
;
6635 /* Ignore newlines. */
6642 /* Check the arguments. */
6656 while (*p
!= ' ' && *p
!= ';')
6663 if (*this_arg
!= '!')
6671 ok
= used_arg (this_arg
, p
- this_arg
);
6685 p
= multilib_select
;
6688 /* Ignore newlines. */
6695 /* Get the initial path. */
6703 this_path_len
= p
- this_path
;
6705 /* Check the arguments. */
6720 while (*p
!= ' ' && *p
!= ';')
6727 if (*this_arg
!= '!')
6735 /* If this is a default argument, we can just ignore it.
6736 This is true even if this_arg begins with '!'. Beginning
6737 with '!' does not mean that this argument is necessarily
6738 inappropriate for this library: it merely means that
6739 there is a more specific library which uses this
6740 argument. If this argument is a default, we need not
6741 consider that more specific library. */
6742 if (! default_arg (this_arg
, p
- this_arg
))
6744 ok
= used_arg (this_arg
, p
- this_arg
);
6755 if (this_path_len
!= 1
6756 || this_path
[0] != '.')
6758 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
6759 strncpy (new_multilib_dir
, this_path
, this_path_len
);
6760 new_multilib_dir
[this_path_len
] = '\0';
6761 multilib_dir
= new_multilib_dir
;
6770 /* Print out the multiple library subdirectory selection
6771 information. This prints out a series of lines. Each line looks
6772 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6773 required. Only the desired options are printed out, the negative
6774 matches. The options are print without a leading dash. There are
6775 no spaces to make it easy to use the information in the shell.
6776 Each subdirectory is printed only once. This assumes the ordering
6777 generated by the genmultilib script. Also, we leave out ones that match
6781 print_multilib_info ()
6783 const char *p
= multilib_select
;
6784 const char *last_path
= 0, *this_path
;
6786 unsigned int last_path_len
= 0;
6791 /* Ignore newlines. */
6798 /* Get the initial path. */
6807 /* Check for matches with the multilib_exclusions. We don't bother
6808 with the '!' in either list. If any of the exclusion rules match
6809 all of its options with the select rule, we skip it. */
6811 const char *e
= multilib_exclusions
;
6812 const char *this_arg
;
6817 /* Ignore newlines. */
6824 /* Check the arguments. */
6841 while (*e
!= ' ' && *e
!= ';')
6852 int len
= e
- this_arg
;
6859 while (*q
!= ' ' && *q
!= ';')
6866 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
6867 default_arg (this_arg
, e
- this_arg
))
6897 /* If this is a duplicate, skip it. */
6898 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
6899 && ! strncmp (last_path
, this_path
, last_path_len
));
6901 last_path
= this_path
;
6902 last_path_len
= p
- this_path
;
6905 /* If this directory requires any default arguments, we can skip
6906 it. We will already have printed a directory identical to
6907 this one which does not require that default argument. */
6925 while (*q
!= ' ' && *q
!= ';')
6933 && default_arg (arg
, q
- arg
))
6948 for (p1
= last_path
; p1
< p
; p1
++)
6967 use_arg
= *p
!= '!';
6972 while (*p
!= ' ' && *p
!= ';')
6987 /* If there are extra options, print them now. */
6988 if (multilib_extra
&& *multilib_extra
)
6990 int print_at
= TRUE
;
6993 for (q
= multilib_extra
; *q
!= '\0'; q
++)